./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec8_product22.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 b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:48:33,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:48:33,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:48:33,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:48:33,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:48:33,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:48:33,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:48:33,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:48:33,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:48:33,486 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:48:33,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:48:33,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:48:33,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:48:33,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:48:33,490 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:48:33,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:48:33,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:48:33,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:48:33,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:48:33,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:48:33,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:48:33,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:48:33,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:48:33,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:48:33,495 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:48:33,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:48:33,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:48:33,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:48:33,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:48:33,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:48:33,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:48:33,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:48:33,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:48:33,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:48:33,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:48:33,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:48:33,504 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:48:33,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:48:33,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:48:33,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:48:33,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:48:33,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:48:33,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c [2024-11-16 07:48:33,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:48:33,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:48:33,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:48:33,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:48:33,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:48:33,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2024-11-16 07:48:35,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:48:35,602 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:48:35,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2024-11-16 07:48:35,631 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/993cd9922/c71690995299452795af623638d24120/FLAG1e1b4cc84 [2024-11-16 07:48:35,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/993cd9922/c71690995299452795af623638d24120 [2024-11-16 07:48:35,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:48:35,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:48:35,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:48:35,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:48:35,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:48:35,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:48:35" (1/1) ... [2024-11-16 07:48:35,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18893e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:35, skipping insertion in model container [2024-11-16 07:48:35,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:48:35" (1/1) ... [2024-11-16 07:48:35,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:48:36,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2024-11-16 07:48:36,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:48:36,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:48:36,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-16 07:48:36,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2024-11-16 07:48:36,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [787] [2024-11-16 07:48:36,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1006] [2024-11-16 07:48:36,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1372] [2024-11-16 07:48:36,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1381] [2024-11-16 07:48:36,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1398] [2024-11-16 07:48:36,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1704] [2024-11-16 07:48:36,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1739] [2024-11-16 07:48:36,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2804] [2024-11-16 07:48:36,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2907] [2024-11-16 07:48:36,474 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2024-11-16 07:48:36,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:48:36,552 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:48:36,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36 WrapperNode [2024-11-16 07:48:36,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:48:36,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:48:36,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:48:36,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:48:36,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,644 INFO L138 Inliner]: procedures = 129, calls = 193, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1037 [2024-11-16 07:48:36,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:48:36,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:48:36,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:48:36,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:48:36,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,695 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]. [2024-11-16 07:48:36,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:48:36,734 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:48:36,734 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:48:36,734 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:48:36,735 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (1/1) ... [2024-11-16 07:48:36,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:48:36,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:36,789 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) [2024-11-16 07:48:36,793 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 [2024-11-16 07:48:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-16 07:48:36,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-16 07:48:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-16 07:48:36,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-16 07:48:36,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-16 07:48:36,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-16 07:48:36,845 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-16 07:48:36,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-16 07:48:36,845 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-16 07:48:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-16 07:48:36,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-16 07:48:36,846 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-16 07:48:36,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-16 07:48:36,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-16 07:48:36,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-16 07:48:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-16 07:48:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-16 07:48:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-16 07:48:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-16 07:48:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-16 07:48:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-16 07:48:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-16 07:48:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-16 07:48:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-16 07:48:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-16 07:48:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:48:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:48:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:48:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:48:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-16 07:48:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-16 07:48:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:48:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:48:37,174 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:48:37,180 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:48:37,557 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2860-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~40#1; [2024-11-16 07:48:37,560 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2662-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~37#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2299-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~31#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1664-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~20#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2880-1: isReadable_#res#1 := isReadable_~retValue_acc~41#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2781-1: getClientId_#res#1 := getClientId_~retValue_acc~39#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2734-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~38#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2346-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~32#1; [2024-11-16 07:48:37,561 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L431-1: getEmailId_#res#1 := getEmailId_~retValue_acc~2#1; [2024-11-16 07:48:37,589 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L505: #res := ~retValue_acc~4; [2024-11-16 07:48:37,618 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2393-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~33#1; [2024-11-16 07:48:37,618 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2438: #res#1 := ~retValue_acc~34#1; [2024-11-16 07:48:37,653 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2904-1: createEmail_#res#1 := createEmail_~retValue_acc~43#1; [2024-11-16 07:48:37,672 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L620: #res := ~retValue_acc~7; [2024-11-16 07:48:37,946 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1621-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~17#1; [2024-11-16 07:48:37,946 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1639-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~19#1; [2024-11-16 07:48:37,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2501-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~35#1; [2024-11-16 07:48:37,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1630-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~18#1; [2024-11-16 07:48:37,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2608-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~36#1; [2024-11-16 07:48:37,947 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1736-1: valid_product_#res#1 := valid_product_~retValue_acc~22#1; [2024-11-16 07:48:37,955 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L468: #res := ~retValue_acc~3; [2024-11-16 07:48:37,983 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L657: #res := ~retValue_acc~8; [2024-11-16 07:48:38,096 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-16 07:48:38,097 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:48:38,118 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:48:38,121 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:48:38,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:48:38 BoogieIcfgContainer [2024-11-16 07:48:38,122 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:48:38,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:48:38,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:48:38,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:48:38,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:48:35" (1/3) ... [2024-11-16 07:48:38,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36650bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:38, skipping insertion in model container [2024-11-16 07:48:38,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:48:36" (2/3) ... [2024-11-16 07:48:38,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36650bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:48:38, skipping insertion in model container [2024-11-16 07:48:38,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:48:38" (3/3) ... [2024-11-16 07:48:38,131 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2024-11-16 07:48:38,149 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:48:38,149 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:48:38,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:48:38,241 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;@7f26ea7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:48:38,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:48:38,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 265 states have (on average 1.5018867924528303) internal successors, (398), 269 states have internal predecessors, (398), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-16 07:48:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 07:48:38,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:38,268 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:38,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:38,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2125026045, now seen corresponding path program 1 times [2024-11-16 07:48:38,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:38,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834522626] [2024-11-16 07:48:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:38,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:38,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:48:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:48:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:48:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:48:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:48:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:48:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-16 07:48:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:48:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:48:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:39,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834522626] [2024-11-16 07:48:39,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834522626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:39,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865086838] [2024-11-16 07:48:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:39,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:39,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:39,164 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) [2024-11-16 07:48:39,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:48:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:39,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:48:39,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:48:39,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:48:39,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865086838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:39,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:48:39,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-16 07:48:39,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941389506] [2024-11-16 07:48:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:39,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:48:39,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:39,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:48:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:48:39,570 INFO L87 Difference]: Start difference. First operand has 335 states, 265 states have (on average 1.5018867924528303) internal successors, (398), 269 states have internal predecessors, (398), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:39,626 INFO L93 Difference]: Finished difference Result 499 states and 730 transitions. [2024-11-16 07:48:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:48:39,631 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-16 07:48:39,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:39,646 INFO L225 Difference]: With dead ends: 499 [2024-11-16 07:48:39,646 INFO L226 Difference]: Without dead ends: 327 [2024-11-16 07:48:39,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:48:39,658 INFO L432 NwaCegarLoop]: 493 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, 493 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 [2024-11-16 07:48:39,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:48:39,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-16 07:48:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2024-11-16 07:48:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 258 states have (on average 1.496124031007752) internal successors, (386), 261 states have internal predecessors, (386), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-16 07:48:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 485 transitions. [2024-11-16 07:48:39,723 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 485 transitions. Word has length 90 [2024-11-16 07:48:39,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:39,724 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 485 transitions. [2024-11-16 07:48:39,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 485 transitions. [2024-11-16 07:48:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 07:48:39,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:39,730 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:39,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 07:48:39,930 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 [2024-11-16 07:48:39,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:39,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash 423794819, now seen corresponding path program 1 times [2024-11-16 07:48:39,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:39,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450805085] [2024-11-16 07:48:39,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:39,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:48:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:48:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:48:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:48:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:48:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:48:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:48:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:48:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-16 07:48:40,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:40,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450805085] [2024-11-16 07:48:40,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450805085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:40,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734647288] [2024-11-16 07:48:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:40,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:40,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:40,222 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) [2024-11-16 07:48:40,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:48:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:40,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 07:48:40,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:48:40,553 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:48:40,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734647288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:40,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:48:40,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:48:40,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267887028] [2024-11-16 07:48:40,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:40,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:48:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:48:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:48:40,556 INFO L87 Difference]: Start difference. First operand 327 states and 485 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:40,611 INFO L93 Difference]: Finished difference Result 489 states and 711 transitions. [2024-11-16 07:48:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:48:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2024-11-16 07:48:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:40,615 INFO L225 Difference]: With dead ends: 489 [2024-11-16 07:48:40,616 INFO L226 Difference]: Without dead ends: 331 [2024-11-16 07:48:40,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:48:40,621 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 0 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 966 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 [2024-11-16 07:48:40,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 966 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:48:40,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-16 07:48:40,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2024-11-16 07:48:40,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 262 states have (on average 1.4885496183206106) internal successors, (390), 265 states have internal predecessors, (390), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-16 07:48:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 489 transitions. [2024-11-16 07:48:40,654 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 489 transitions. Word has length 93 [2024-11-16 07:48:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:40,655 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 489 transitions. [2024-11-16 07:48:40,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 489 transitions. [2024-11-16 07:48:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 07:48:40,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:40,660 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:40,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 07:48:40,860 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 [2024-11-16 07:48:40,861 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:40,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1676332814, now seen corresponding path program 1 times [2024-11-16 07:48:40,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:40,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790150890] [2024-11-16 07:48:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:40,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:48:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:48:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:48:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:48:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:48:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-16 07:48:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:48:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:48:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:48:41,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790150890] [2024-11-16 07:48:41,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790150890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:41,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364866789] [2024-11-16 07:48:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:41,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:41,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:41,235 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) [2024-11-16 07:48:41,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:48:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:48:41,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:48:41,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:48:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364866789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:48:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-16 07:48:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796309287] [2024-11-16 07:48:41,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:41,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:48:41,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:48:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:48:41,564 INFO L87 Difference]: Start difference. First operand 331 states and 489 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:41,605 INFO L93 Difference]: Finished difference Result 706 states and 1054 transitions. [2024-11-16 07:48:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:48:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-16 07:48:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:41,611 INFO L225 Difference]: With dead ends: 706 [2024-11-16 07:48:41,611 INFO L226 Difference]: Without dead ends: 404 [2024-11-16 07:48:41,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:48:41,614 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 125 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 946 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 [2024-11-16 07:48:41,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 946 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:48:41,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-16 07:48:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 396. [2024-11-16 07:48:41,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 316 states have (on average 1.490506329113924) internal successors, (471), 319 states have internal predecessors, (471), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 07:48:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 592 transitions. [2024-11-16 07:48:41,642 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 592 transitions. Word has length 104 [2024-11-16 07:48:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:41,642 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 592 transitions. [2024-11-16 07:48:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 592 transitions. [2024-11-16 07:48:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 07:48:41,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:41,645 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:41,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 07:48:41,846 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 [2024-11-16 07:48:41,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:41,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1041153916, now seen corresponding path program 1 times [2024-11-16 07:48:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:41,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678215441] [2024-11-16 07:48:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:41,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:48:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:48:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:48:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:48:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:48:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 07:48:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:48:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:48:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:48:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678215441] [2024-11-16 07:48:42,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678215441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685591798] [2024-11-16 07:48:42,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:42,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:42,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:42,058 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) [2024-11-16 07:48:42,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:48:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:48:42,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:48:42,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:48:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685591798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:42,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:48:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-16 07:48:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80099447] [2024-11-16 07:48:42,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:42,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:48:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:42,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:48:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:48:42,460 INFO L87 Difference]: Start difference. First operand 396 states and 592 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:42,528 INFO L93 Difference]: Finished difference Result 783 states and 1174 transitions. [2024-11-16 07:48:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:48:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-16 07:48:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:42,532 INFO L225 Difference]: With dead ends: 783 [2024-11-16 07:48:42,533 INFO L226 Difference]: Without dead ends: 398 [2024-11-16 07:48:42,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:48:42,536 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1897 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 [2024-11-16 07:48:42,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1897 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:48:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-16 07:48:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2024-11-16 07:48:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 317 states have (on average 1.4889589905362777) internal successors, (472), 321 states have internal predecessors, (472), 61 states have call successors, (61), 18 states have call predecessors, (61), 19 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-11-16 07:48:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 595 transitions. [2024-11-16 07:48:42,558 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 595 transitions. Word has length 105 [2024-11-16 07:48:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:42,558 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 595 transitions. [2024-11-16 07:48:42,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 595 transitions. [2024-11-16 07:48:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 07:48:42,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:42,562 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:42,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 07:48:42,765 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 [2024-11-16 07:48:42,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:42,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:42,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1172030367, now seen corresponding path program 1 times [2024-11-16 07:48:42,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:42,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585826477] [2024-11-16 07:48:42,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:42,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:42,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:48:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:48:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:48:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:48:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-16 07:48:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:48:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:48:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:48:42,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585826477] [2024-11-16 07:48:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585826477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963708013] [2024-11-16 07:48:42,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:42,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:42,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:43,001 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) [2024-11-16 07:48:43,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:48:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 07:48:43,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 07:48:43,330 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:48:43,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963708013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:43,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:48:43,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-16 07:48:43,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377853229] [2024-11-16 07:48:43,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:43,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:48:43,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:43,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:48:43,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:48:43,333 INFO L87 Difference]: Start difference. First operand 398 states and 595 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:43,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:43,411 INFO L93 Difference]: Finished difference Result 785 states and 1179 transitions. [2024-11-16 07:48:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:48:43,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-16 07:48:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:43,415 INFO L225 Difference]: With dead ends: 785 [2024-11-16 07:48:43,415 INFO L226 Difference]: Without dead ends: 400 [2024-11-16 07:48:43,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:48:43,417 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 2 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1883 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 [2024-11-16 07:48:43,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1883 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:48:43,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-16 07:48:43,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-16 07:48:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 318 states have (on average 1.4874213836477987) internal successors, (473), 323 states have internal predecessors, (473), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-16 07:48:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 601 transitions. [2024-11-16 07:48:43,471 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 601 transitions. Word has length 106 [2024-11-16 07:48:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:43,471 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 601 transitions. [2024-11-16 07:48:43,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 601 transitions. [2024-11-16 07:48:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 07:48:43,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:43,475 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:43,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 07:48:43,675 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 [2024-11-16 07:48:43,676 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:43,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:43,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1649640170, now seen corresponding path program 1 times [2024-11-16 07:48:43,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:43,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092583770] [2024-11-16 07:48:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 07:48:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:48:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:48:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:48:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:48:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:48:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:48:43,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:43,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092583770] [2024-11-16 07:48:43,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092583770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:43,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:43,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:48:43,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752107144] [2024-11-16 07:48:43,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:43,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:48:43,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:43,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:48:43,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:48:43,929 INFO L87 Difference]: Start difference. First operand 400 states and 601 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:45,939 INFO L93 Difference]: Finished difference Result 952 states and 1443 transitions. [2024-11-16 07:48:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:48:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 107 [2024-11-16 07:48:45,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:45,944 INFO L225 Difference]: With dead ends: 952 [2024-11-16 07:48:45,945 INFO L226 Difference]: Without dead ends: 575 [2024-11-16 07:48:45,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:48:45,947 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1111 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 2611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:45,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 1260 Invalid, 2611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-16 07:48:45,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-16 07:48:45,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 400. [2024-11-16 07:48:45,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 318 states have (on average 1.4874213836477987) internal successors, (473), 323 states have internal predecessors, (473), 61 states have call successors, (61), 18 states have call predecessors, (61), 20 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-11-16 07:48:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 600 transitions. [2024-11-16 07:48:45,981 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 600 transitions. Word has length 107 [2024-11-16 07:48:45,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:45,981 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 600 transitions. [2024-11-16 07:48:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:45,982 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 600 transitions. [2024-11-16 07:48:45,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 07:48:45,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:45,984 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:45,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 07:48:45,985 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash -699071395, now seen corresponding path program 2 times [2024-11-16 07:48:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898860774] [2024-11-16 07:48:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:48:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:48:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:48:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:48:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:48:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:48:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:48:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:46,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898860774] [2024-11-16 07:48:46,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898860774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:46,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:46,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 07:48:46,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012500739] [2024-11-16 07:48:46,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:46,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 07:48:46,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 07:48:46,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:48:46,206 INFO L87 Difference]: Start difference. First operand 400 states and 600 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:48,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:48,136 INFO L93 Difference]: Finished difference Result 954 states and 1446 transitions. [2024-11-16 07:48:48,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 07:48:48,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2024-11-16 07:48:48,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:48,143 INFO L225 Difference]: With dead ends: 954 [2024-11-16 07:48:48,143 INFO L226 Difference]: Without dead ends: 577 [2024-11-16 07:48:48,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:48:48,146 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1173 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:48,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1259 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-16 07:48:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-16 07:48:48,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 402. [2024-11-16 07:48:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 319 states have (on average 1.4858934169278997) internal successors, (474), 325 states have internal predecessors, (474), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-16 07:48:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 603 transitions. [2024-11-16 07:48:48,201 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 603 transitions. Word has length 108 [2024-11-16 07:48:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:48,203 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 603 transitions. [2024-11-16 07:48:48,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-16 07:48:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 603 transitions. [2024-11-16 07:48:48,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 07:48:48,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:48,206 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:48,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 07:48:48,206 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:48,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:48,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1156012729, now seen corresponding path program 1 times [2024-11-16 07:48:48,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:48,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175688103] [2024-11-16 07:48:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:48:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:48:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 07:48:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:48:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:48:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:48:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:48:48,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:48,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175688103] [2024-11-16 07:48:48,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175688103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:48,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:48,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:48:48,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377966781] [2024-11-16 07:48:48,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:48,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:48:48,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:48,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:48:48,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:48:48,414 INFO L87 Difference]: Start difference. First operand 402 states and 603 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:48:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:50,880 INFO L93 Difference]: Finished difference Result 952 states and 1441 transitions. [2024-11-16 07:48:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:48:50,881 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 109 [2024-11-16 07:48:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:50,885 INFO L225 Difference]: With dead ends: 952 [2024-11-16 07:48:50,885 INFO L226 Difference]: Without dead ends: 577 [2024-11-16 07:48:50,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:48:50,888 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1107 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:50,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 1744 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 3771 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 07:48:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-16 07:48:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 402. [2024-11-16 07:48:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 319 states have (on average 1.4858934169278997) internal successors, (474), 325 states have internal predecessors, (474), 61 states have call successors, (61), 18 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-16 07:48:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 602 transitions. [2024-11-16 07:48:50,918 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 602 transitions. Word has length 109 [2024-11-16 07:48:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:50,918 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 602 transitions. [2024-11-16 07:48:50,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:48:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 602 transitions. [2024-11-16 07:48:50,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 07:48:50,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:50,921 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:50,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 07:48:50,921 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:50,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash -98113448, now seen corresponding path program 2 times [2024-11-16 07:48:50,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:50,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687704113] [2024-11-16 07:48:50,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:50,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:48:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:48:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 07:48:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:48:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:48:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:48:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 07:48:51,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:51,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687704113] [2024-11-16 07:48:51,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687704113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:51,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:51,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 07:48:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488289000] [2024-11-16 07:48:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:51,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 07:48:51,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:51,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 07:48:51,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:48:51,156 INFO L87 Difference]: Start difference. First operand 402 states and 602 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:48:53,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:53,515 INFO L93 Difference]: Finished difference Result 954 states and 1447 transitions. [2024-11-16 07:48:53,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 07:48:53,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 110 [2024-11-16 07:48:53,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:53,520 INFO L225 Difference]: With dead ends: 954 [2024-11-16 07:48:53,520 INFO L226 Difference]: Without dead ends: 579 [2024-11-16 07:48:53,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-16 07:48:53,522 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1094 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 3877 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 4257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 3877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:53,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1745 Invalid, 4257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 3877 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-16 07:48:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-16 07:48:53,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 404. [2024-11-16 07:48:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 320 states have (on average 1.484375) internal successors, (475), 327 states have internal predecessors, (475), 61 states have call successors, (61), 18 states have call predecessors, (61), 22 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-11-16 07:48:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 608 transitions. [2024-11-16 07:48:53,555 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 608 transitions. Word has length 110 [2024-11-16 07:48:53,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:53,556 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 608 transitions. [2024-11-16 07:48:53,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-16 07:48:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 608 transitions. [2024-11-16 07:48:53,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 07:48:53,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:53,558 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:53,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 07:48:53,559 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:53,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:53,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1883336292, now seen corresponding path program 1 times [2024-11-16 07:48:53,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:53,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375695740] [2024-11-16 07:48:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:53,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:48:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:48:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 07:48:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:48:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:48:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:48:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:48:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:53,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375695740] [2024-11-16 07:48:53,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375695740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:48:53,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941001639] [2024-11-16 07:48:53,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:53,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:48:53,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:48:53,803 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) [2024-11-16 07:48:53,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:48:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:54,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:48:54,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:48:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:48:54,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 07:48:54,217 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:48:54,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941001639] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 07:48:54,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 07:48:54,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-16 07:48:54,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494592399] [2024-11-16 07:48:54,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 07:48:54,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-16 07:48:54,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:54,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-16 07:48:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:48:54,222 INFO L87 Difference]: Start difference. First operand 404 states and 608 transitions. Second operand has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-16 07:48:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:57,170 INFO L93 Difference]: Finished difference Result 1384 states and 2174 transitions. [2024-11-16 07:48:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 07:48:57,171 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 111 [2024-11-16 07:48:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:57,178 INFO L225 Difference]: With dead ends: 1384 [2024-11-16 07:48:57,178 INFO L226 Difference]: Without dead ends: 1013 [2024-11-16 07:48:57,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-16 07:48:57,182 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 2135 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 5166 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 5891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 5166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:57,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 2209 Invalid, 5891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 5166 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 07:48:57,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-11-16 07:48:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 814. [2024-11-16 07:48:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 666 states have (on average 1.506006006006006) internal successors, (1003), 673 states have internal predecessors, (1003), 125 states have call successors, (125), 18 states have call predecessors, (125), 22 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-11-16 07:48:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1274 transitions. [2024-11-16 07:48:57,240 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1274 transitions. Word has length 111 [2024-11-16 07:48:57,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:57,240 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1274 transitions. [2024-11-16 07:48:57,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.5) internal successors, (133), 11 states have internal predecessors, (133), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-16 07:48:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1274 transitions. [2024-11-16 07:48:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 07:48:57,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:57,244 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:57,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 07:48:57,448 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 [2024-11-16 07:48:57,449 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:57,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1356846247, now seen corresponding path program 1 times [2024-11-16 07:48:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247164795] [2024-11-16 07:48:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:48:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 07:48:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:48:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:48:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-16 07:48:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:48:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:48:57,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:57,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247164795] [2024-11-16 07:48:57,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247164795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:57,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:57,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:48:57,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860026394] [2024-11-16 07:48:57,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:57,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:48:57,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:57,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:48:57,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:48:57,585 INFO L87 Difference]: Start difference. First operand 814 states and 1274 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:48:58,842 INFO L93 Difference]: Finished difference Result 2113 states and 3367 transitions. [2024-11-16 07:48:58,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:48:58,842 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2024-11-16 07:48:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:48:58,850 INFO L225 Difference]: With dead ends: 2113 [2024-11-16 07:48:58,851 INFO L226 Difference]: Without dead ends: 1381 [2024-11-16 07:48:58,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:48:58,854 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1284 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:48:58,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 925 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:48:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-11-16 07:48:58,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1198. [2024-11-16 07:48:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 986 states have (on average 1.5081135902636917) internal successors, (1487), 993 states have internal predecessors, (1487), 189 states have call successors, (189), 18 states have call predecessors, (189), 22 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-11-16 07:48:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1896 transitions. [2024-11-16 07:48:58,911 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1896 transitions. Word has length 121 [2024-11-16 07:48:58,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:48:58,911 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1896 transitions. [2024-11-16 07:48:58,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:48:58,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1896 transitions. [2024-11-16 07:48:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 07:48:58,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:48:58,917 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:48:58,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 07:48:58,917 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:48:58,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:48:58,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2098488267, now seen corresponding path program 1 times [2024-11-16 07:48:58,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:48:58,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610554575] [2024-11-16 07:48:58,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:48:58,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:48:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:48:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:48:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:48:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:48:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:48:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:58,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:48:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-16 07:48:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:48:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:48:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 07:48:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:48:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:48:59,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:48:59,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:48:59,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610554575] [2024-11-16 07:48:59,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610554575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:48:59,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:48:59,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:48:59,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401335310] [2024-11-16 07:48:59,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:48:59,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:48:59,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:48:59,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:48:59,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:48:59,021 INFO L87 Difference]: Start difference. First operand 1198 states and 1896 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:00,247 INFO L93 Difference]: Finished difference Result 3065 states and 4898 transitions. [2024-11-16 07:49:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:00,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2024-11-16 07:49:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:00,257 INFO L225 Difference]: With dead ends: 3065 [2024-11-16 07:49:00,257 INFO L226 Difference]: Without dead ends: 2010 [2024-11-16 07:49:00,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:00,262 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1257 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:00,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 950 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:49:00,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2024-11-16 07:49:00,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1827. [2024-11-16 07:49:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1520 states have (on average 1.505921052631579) internal successors, (2289), 1527 states have internal predecessors, (2289), 284 states have call successors, (284), 18 states have call predecessors, (284), 22 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-11-16 07:49:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2888 transitions. [2024-11-16 07:49:00,346 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2888 transitions. Word has length 122 [2024-11-16 07:49:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:00,346 INFO L471 AbstractCegarLoop]: Abstraction has 1827 states and 2888 transitions. [2024-11-16 07:49:00,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2888 transitions. [2024-11-16 07:49:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 07:49:00,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:00,353 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:00,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 07:49:00,354 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:00,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:00,354 INFO L85 PathProgramCache]: Analyzing trace with hash -559930727, now seen corresponding path program 1 times [2024-11-16 07:49:00,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:00,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845664905] [2024-11-16 07:49:00,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:00,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-16 07:49:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:49:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-16 07:49:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-16 07:49:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:49:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845664905] [2024-11-16 07:49:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845664905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:00,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:00,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234431986] [2024-11-16 07:49:00,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:00,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:00,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:00,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:00,462 INFO L87 Difference]: Start difference. First operand 1827 states and 2888 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:01,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:01,771 INFO L93 Difference]: Finished difference Result 4507 states and 7219 transitions. [2024-11-16 07:49:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:01,771 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2024-11-16 07:49:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:01,784 INFO L225 Difference]: With dead ends: 4507 [2024-11-16 07:49:01,785 INFO L226 Difference]: Without dead ends: 2976 [2024-11-16 07:49:01,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:01,791 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1182 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:01,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 918 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:49:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-11-16 07:49:01,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2793. [2024-11-16 07:49:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2363 states have (on average 1.5035971223021583) internal successors, (3553), 2370 states have internal predecessors, (3553), 407 states have call successors, (407), 18 states have call predecessors, (407), 22 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-11-16 07:49:01,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 4414 transitions. [2024-11-16 07:49:01,902 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 4414 transitions. Word has length 123 [2024-11-16 07:49:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:01,902 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 4414 transitions. [2024-11-16 07:49:01,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 4414 transitions. [2024-11-16 07:49:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 07:49:01,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:01,911 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:01,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 07:49:01,911 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:01,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1504141035, now seen corresponding path program 1 times [2024-11-16 07:49:01,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:01,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327717315] [2024-11-16 07:49:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:01,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-16 07:49:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:01,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:49:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:02,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 07:49:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:02,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 07:49:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:02,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:49:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:02,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:02,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327717315] [2024-11-16 07:49:02,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327717315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:02,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:02,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:02,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833937482] [2024-11-16 07:49:02,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:02,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:02,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:02,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:02,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:02,009 INFO L87 Difference]: Start difference. First operand 2793 states and 4414 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:03,296 INFO L93 Difference]: Finished difference Result 6779 states and 10867 transitions. [2024-11-16 07:49:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:03,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2024-11-16 07:49:03,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:03,320 INFO L225 Difference]: With dead ends: 6779 [2024-11-16 07:49:03,321 INFO L226 Difference]: Without dead ends: 4534 [2024-11-16 07:49:03,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:03,330 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1280 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:03,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 918 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:49:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4534 states. [2024-11-16 07:49:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4534 to 4351. [2024-11-16 07:49:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3742 states have (on average 1.5005344735435595) internal successors, (5615), 3749 states have internal predecessors, (5615), 586 states have call successors, (586), 18 states have call predecessors, (586), 22 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-11-16 07:49:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6860 transitions. [2024-11-16 07:49:03,538 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6860 transitions. Word has length 124 [2024-11-16 07:49:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:03,538 INFO L471 AbstractCegarLoop]: Abstraction has 4351 states and 6860 transitions. [2024-11-16 07:49:03,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:03,539 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6860 transitions. [2024-11-16 07:49:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 07:49:03,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:03,547 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:03,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 07:49:03,547 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:03,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2013395399, now seen corresponding path program 1 times [2024-11-16 07:49:03,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:03,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384034400] [2024-11-16 07:49:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:03,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-16 07:49:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:49:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 07:49:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-16 07:49:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-16 07:49:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384034400] [2024-11-16 07:49:03,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384034400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:03,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:03,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093431796] [2024-11-16 07:49:03,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:03,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:03,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:03,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:03,653 INFO L87 Difference]: Start difference. First operand 4351 states and 6860 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:05,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:05,015 INFO L93 Difference]: Finished difference Result 10554 states and 16903 transitions. [2024-11-16 07:49:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:05,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-16 07:49:05,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:05,047 INFO L225 Difference]: With dead ends: 10554 [2024-11-16 07:49:05,048 INFO L226 Difference]: Without dead ends: 7136 [2024-11-16 07:49:05,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:05,058 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 1201 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:05,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 925 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:49:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2024-11-16 07:49:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 6953. [2024-11-16 07:49:05,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 5968 states have (on average 1.4882707774798927) internal successors, (8882), 5975 states have internal predecessors, (8882), 962 states have call successors, (962), 18 states have call predecessors, (962), 22 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-11-16 07:49:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 10923 transitions. [2024-11-16 07:49:05,341 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 10923 transitions. Word has length 125 [2024-11-16 07:49:05,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:05,342 INFO L471 AbstractCegarLoop]: Abstraction has 6953 states and 10923 transitions. [2024-11-16 07:49:05,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 10923 transitions. [2024-11-16 07:49:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 07:49:05,353 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:05,353 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:05,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 07:49:05,354 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:05,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:05,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1322801803, now seen corresponding path program 1 times [2024-11-16 07:49:05,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:05,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047403216] [2024-11-16 07:49:05,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:05,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 07:49:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:49:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-16 07:49:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-16 07:49:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 07:49:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:05,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:05,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047403216] [2024-11-16 07:49:05,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047403216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:05,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:05,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340469082] [2024-11-16 07:49:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:05,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:05,456 INFO L87 Difference]: Start difference. First operand 6953 states and 10923 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:06,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:06,865 INFO L93 Difference]: Finished difference Result 17390 states and 27735 transitions. [2024-11-16 07:49:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:06,866 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2024-11-16 07:49:06,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:06,913 INFO L225 Difference]: With dead ends: 17390 [2024-11-16 07:49:06,913 INFO L226 Difference]: Without dead ends: 11850 [2024-11-16 07:49:06,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:06,933 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1314 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:06,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 925 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 07:49:06,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11850 states. [2024-11-16 07:49:07,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11850 to 11667. [2024-11-16 07:49:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11667 states, 10076 states have (on average 1.4824335053592697) internal successors, (14937), 10083 states have internal predecessors, (14937), 1568 states have call successors, (1568), 18 states have call predecessors, (1568), 22 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-11-16 07:49:07,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 18268 transitions. [2024-11-16 07:49:07,536 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 18268 transitions. Word has length 126 [2024-11-16 07:49:07,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:07,537 INFO L471 AbstractCegarLoop]: Abstraction has 11667 states and 18268 transitions. [2024-11-16 07:49:07,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:07,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 18268 transitions. [2024-11-16 07:49:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 07:49:07,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:07,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:07,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 07:49:07,552 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:07,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:07,552 INFO L85 PathProgramCache]: Analyzing trace with hash 101548409, now seen corresponding path program 1 times [2024-11-16 07:49:07,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:07,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400219913] [2024-11-16 07:49:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:07,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 07:49:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 07:49:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-16 07:49:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-16 07:49:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-16 07:49:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:07,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:07,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:07,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400219913] [2024-11-16 07:49:07,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400219913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:07,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:07,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:07,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533867605] [2024-11-16 07:49:07,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:07,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:07,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:07,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:07,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:07,662 INFO L87 Difference]: Start difference. First operand 11667 states and 18268 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:09,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:09,101 INFO L93 Difference]: Finished difference Result 30392 states and 48309 transitions. [2024-11-16 07:49:09,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:09,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2024-11-16 07:49:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:09,176 INFO L225 Difference]: With dead ends: 30392 [2024-11-16 07:49:09,176 INFO L226 Difference]: Without dead ends: 20728 [2024-11-16 07:49:09,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:09,211 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 1284 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:09,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 966 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:49:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20728 states. [2024-11-16 07:49:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20728 to 20545. [2024-11-16 07:49:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20545 states, 17751 states have (on average 1.473043772181849) internal successors, (26148), 17758 states have internal predecessors, (26148), 2771 states have call successors, (2771), 18 states have call predecessors, (2771), 22 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-11-16 07:49:10,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20545 states to 20545 states and 32029 transitions. [2024-11-16 07:49:10,090 INFO L78 Accepts]: Start accepts. Automaton has 20545 states and 32029 transitions. Word has length 127 [2024-11-16 07:49:10,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:10,091 INFO L471 AbstractCegarLoop]: Abstraction has 20545 states and 32029 transitions. [2024-11-16 07:49:10,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:10,091 INFO L276 IsEmpty]: Start isEmpty. Operand 20545 states and 32029 transitions. [2024-11-16 07:49:10,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 07:49:10,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:10,111 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:10,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 07:49:10,111 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:10,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:10,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1676648683, now seen corresponding path program 1 times [2024-11-16 07:49:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:10,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280157651] [2024-11-16 07:49:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:10,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-16 07:49:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 07:49:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-16 07:49:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 07:49:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-16 07:49:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:10,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:10,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280157651] [2024-11-16 07:49:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280157651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:10,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920406565] [2024-11-16 07:49:10,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:10,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:10,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:10,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:10,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:10,267 INFO L87 Difference]: Start difference. First operand 20545 states and 32029 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:12,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:12,161 INFO L93 Difference]: Finished difference Result 54790 states and 86744 transitions. [2024-11-16 07:49:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:12,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2024-11-16 07:49:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:12,309 INFO L225 Difference]: With dead ends: 54790 [2024-11-16 07:49:12,310 INFO L226 Difference]: Without dead ends: 37068 [2024-11-16 07:49:12,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:12,368 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1256 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:12,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 919 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 07:49:12,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37068 states. [2024-11-16 07:49:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37068 to 36885. [2024-11-16 07:49:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36885 states, 32052 states have (on average 1.4667103456882566) internal successors, (47011), 32059 states have internal predecessors, (47011), 4810 states have call successors, (4810), 18 states have call predecessors, (4810), 22 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-11-16 07:49:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36885 states to 36885 states and 57244 transitions. [2024-11-16 07:49:14,063 INFO L78 Accepts]: Start accepts. Automaton has 36885 states and 57244 transitions. Word has length 128 [2024-11-16 07:49:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:14,063 INFO L471 AbstractCegarLoop]: Abstraction has 36885 states and 57244 transitions. [2024-11-16 07:49:14,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 36885 states and 57244 transitions. [2024-11-16 07:49:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 07:49:14,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:14,084 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:14,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 07:49:14,085 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:14,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1935794023, now seen corresponding path program 1 times [2024-11-16 07:49:14,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:14,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988466951] [2024-11-16 07:49:14,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:14,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:49:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-16 07:49:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-16 07:49:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-16 07:49:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 07:49:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:14,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:14,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988466951] [2024-11-16 07:49:14,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988466951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:14,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:14,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:14,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598928283] [2024-11-16 07:49:14,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:14,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:14,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:14,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:14,210 INFO L87 Difference]: Start difference. First operand 36885 states and 57244 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:17,104 INFO L93 Difference]: Finished difference Result 101189 states and 158930 transitions. [2024-11-16 07:49:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:17,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2024-11-16 07:49:17,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:17,352 INFO L225 Difference]: With dead ends: 101189 [2024-11-16 07:49:17,352 INFO L226 Difference]: Without dead ends: 68122 [2024-11-16 07:49:17,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:17,427 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1213 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:17,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 931 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 07:49:17,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68122 states. [2024-11-16 07:49:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68122 to 67939. [2024-11-16 07:49:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67939 states, 59391 states have (on average 1.4595982556279572) internal successors, (86687), 59398 states have internal predecessors, (86687), 8525 states have call successors, (8525), 18 states have call predecessors, (8525), 22 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-11-16 07:49:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67939 states to 67939 states and 104882 transitions. [2024-11-16 07:49:20,201 INFO L78 Accepts]: Start accepts. Automaton has 67939 states and 104882 transitions. Word has length 129 [2024-11-16 07:49:20,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:20,202 INFO L471 AbstractCegarLoop]: Abstraction has 67939 states and 104882 transitions. [2024-11-16 07:49:20,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 67939 states and 104882 transitions. [2024-11-16 07:49:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 07:49:20,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:20,228 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:20,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 07:49:20,228 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:20,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2030927957, now seen corresponding path program 1 times [2024-11-16 07:49:20,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:20,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312962919] [2024-11-16 07:49:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:20,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:20,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-16 07:49:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:49:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 07:49:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 07:49:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-16 07:49:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:20,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312962919] [2024-11-16 07:49:20,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312962919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:20,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:20,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 07:49:20,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286193394] [2024-11-16 07:49:20,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:20,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:49:20,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:49:20,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:49:20,334 INFO L87 Difference]: Start difference. First operand 67939 states and 104882 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:23,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:23,747 INFO L93 Difference]: Finished difference Result 127857 states and 200528 transitions. [2024-11-16 07:49:23,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:49:23,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 130 [2024-11-16 07:49:23,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:24,248 INFO L225 Difference]: With dead ends: 127857 [2024-11-16 07:49:24,248 INFO L226 Difference]: Without dead ends: 127699 [2024-11-16 07:49:24,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:49:24,321 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1134 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:24,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 958 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 07:49:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127699 states. [2024-11-16 07:49:28,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127699 to 127516. [2024-11-16 07:49:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127516 states, 112169 states have (on average 1.4515686152145424) internal successors, (162821), 112176 states have internal predecessors, (162821), 15324 states have call successors, (15324), 18 states have call predecessors, (15324), 22 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-11-16 07:49:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127516 states to 127516 states and 195660 transitions. [2024-11-16 07:49:28,833 INFO L78 Accepts]: Start accepts. Automaton has 127516 states and 195660 transitions. Word has length 130 [2024-11-16 07:49:28,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:49:28,833 INFO L471 AbstractCegarLoop]: Abstraction has 127516 states and 195660 transitions. [2024-11-16 07:49:28,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-16 07:49:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 127516 states and 195660 transitions. [2024-11-16 07:49:28,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 07:49:28,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:49:28,850 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:49:28,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 07:49:28,850 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:49:28,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:49:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 895232953, now seen corresponding path program 1 times [2024-11-16 07:49:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:49:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595243549] [2024-11-16 07:49:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:49:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:49:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 07:49:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:49:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 07:49:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:49:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:49:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 07:49:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-16 07:49:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-16 07:49:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 07:49:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-16 07:49:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-16 07:49:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:49:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:49:29,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:49:29,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595243549] [2024-11-16 07:49:29,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595243549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:49:29,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:49:29,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 07:49:29,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042687808] [2024-11-16 07:49:29,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:49:29,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 07:49:29,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:49:29,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 07:49:29,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:49:29,235 INFO L87 Difference]: Start difference. First operand 127516 states and 195660 transitions. Second operand has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-16 07:49:38,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:49:38,575 INFO L93 Difference]: Finished difference Result 254522 states and 402611 transitions. [2024-11-16 07:49:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-16 07:49:38,575 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 131 [2024-11-16 07:49:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:49:39,703 INFO L225 Difference]: With dead ends: 254522 [2024-11-16 07:49:39,703 INFO L226 Difference]: Without dead ends: 254370 [2024-11-16 07:49:39,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=715, Invalid=2825, Unknown=0, NotChecked=0, Total=3540 [2024-11-16 07:49:39,787 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 4396 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 6507 mSolverCounterSat, 1351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4396 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 7858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1351 IncrementalHoareTripleChecker+Valid, 6507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-16 07:49:39,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4396 Valid, 2882 Invalid, 7858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1351 Valid, 6507 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-16 07:49:39,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254370 states.