./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:13:54,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:13:54,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:13:54,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:13:54,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:13:54,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:13:54,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:13:54,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:13:54,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:13:54,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:13:54,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:13:54,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:13:54,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:13:54,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:13:54,722 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:13:54,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:13:54,722 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:13:54,723 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:13:54,723 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:13:54,723 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:13:54,723 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:13:54,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:13:54,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:13:54,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:13:54,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:13:54,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:13:54,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:13:54,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:13:54,727 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:13:54,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:13:54,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:13:54,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:13:54,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:13:54,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:13:54,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:13:54,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:13:54,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:13:54,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:13:54,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:13:54,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:13:54,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:13:54,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:13:54,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dc52251d8599495e3d1910510992bf3863620ce75312360a12a1bf3bdfb6242 [2024-11-09 23:13:54,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:13:54,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:13:54,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:13:54,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:13:54,963 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:13:54,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2024-11-09 23:13:56,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:13:56,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:13:56,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product33.cil.c [2024-11-09 23:13:56,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1606797/c4d2b832961b4dc4ba1ea11dfec48709/FLAGd2f609c06 [2024-11-09 23:13:56,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb1606797/c4d2b832961b4dc4ba1ea11dfec48709 [2024-11-09 23:13:56,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:13:56,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:13:56,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:13:56,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:13:56,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:13:56,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:56" (1/1) ... [2024-11-09 23:13:56,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cdc047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:56, skipping insertion in model container [2024-11-09 23:13:56,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:56" (1/1) ... [2024-11-09 23:13:56,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:13:57,185 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_spec9_product33.cil.c[33566,33579] [2024-11-09 23:13:57,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:13:57,291 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:13:57,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-09 23:13:57,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [208] [2024-11-09 23:13:57,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [523] [2024-11-09 23:13:57,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [742] [2024-11-09 23:13:57,300 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [785] [2024-11-09 23:13:57,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1187] [2024-11-09 23:13:57,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1553] [2024-11-09 23:13:57,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1562] [2024-11-09 23:13:57,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1579] [2024-11-09 23:13:57,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1974] [2024-11-09 23:13:57,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3039] [2024-11-09 23:13:57,332 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_spec9_product33.cil.c[33566,33579] [2024-11-09 23:13:57,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:13:57,381 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:13:57,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57 WrapperNode [2024-11-09 23:13:57,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:13:57,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:13:57,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:13:57,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:13:57,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,456 INFO L138 Inliner]: procedures = 135, calls = 215, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1092 [2024-11-09 23:13:57,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:13:57,460 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:13:57,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:13:57,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:13:57,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,475 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,502 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-09 23:13:57,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,518 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:13:57,538 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:13:57,542 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:13:57,542 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:13:57,543 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (1/1) ... [2024-11-09 23:13:57,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:13:57,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:57,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 23:13:57,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 23:13:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 23:13:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 23:13:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 23:13:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 23:13:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 23:13:57,617 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 23:13:57,617 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:13:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:13:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:13:57,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:13:57,618 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 23:13:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 23:13:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:13:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:13:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 23:13:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 23:13:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 23:13:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 23:13:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:13:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:13:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 23:13:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 23:13:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-09 23:13:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-09 23:13:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:13:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:13:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:13:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 23:13:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 23:13:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-09 23:13:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-09 23:13:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:13:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:13:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:13:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:13:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:13:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:13:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 23:13:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 23:13:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:13:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 23:13:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:13:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 23:13:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:13:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:13:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:13:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:13:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:13:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:13:57,826 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:13:57,828 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:13:58,086 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1168-1: isVerified_#res#1 := isVerified_~retValue_acc~15#1; [2024-11-09 23:13:58,086 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2969-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~40#1; [2024-11-09 23:13:58,086 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L831-1: getEmailId_#res#1 := getEmailId_~retValue_acc~6#1; [2024-11-09 23:13:58,087 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2534-1: getClientAutoResponse_#res#1 := getClientAutoResponse_~retValue_acc~33#1; [2024-11-09 23:13:58,087 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3016-1: getClientId_#res#1 := getClientId_~retValue_acc~41#1; [2024-11-09 23:13:58,094 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1094: #res := ~retValue_acc~13; [2024-11-09 23:13:58,102 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1865: #res := ~retValue_acc~24; [2024-11-09 23:13:58,133 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2673: #res#1 := ~retValue_acc~36#1; [2024-11-09 23:13:58,134 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2628-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~35#1; [2024-11-09 23:13:58,156 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2897: #res := ~retValue_acc~39; [2024-11-09 23:13:58,164 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2581: #res := ~retValue_acc~34; [2024-11-09 23:13:58,172 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L205-1: createEmail_#res#1 := createEmail_~retValue_acc~3#1; [2024-11-09 23:13:58,180 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020: #res := ~retValue_acc~11; [2024-11-09 23:13:58,190 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1057: #res := ~retValue_acc~12; [2024-11-09 23:13:58,196 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1131: #res := ~retValue_acc~14; [2024-11-09 23:13:58,218 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L905: #res := ~retValue_acc~8; [2024-11-09 23:13:58,433 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2843-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~38#1; [2024-11-09 23:13:58,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1822-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~21#1; [2024-11-09 23:13:58,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1840-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~23#1; [2024-11-09 23:13:58,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2736-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~37#1; [2024-11-09 23:13:58,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1831-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~22#1; [2024-11-09 23:13:58,434 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3071-1: valid_product_#res#1 := valid_product_~retValue_acc~43#1; [2024-11-09 23:13:58,439 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L868: #res := ~retValue_acc~7; [2024-11-09 23:13:58,451 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L161-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~0#1; [2024-11-09 23:13:58,451 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L181: #res#1 := ~retValue_acc~1#1; [2024-11-09 23:13:58,557 INFO L? ?]: Removed 506 outVars from TransFormulas that were not future-live. [2024-11-09 23:13:58,558 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:13:58,583 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:13:58,585 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:13:58,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:13:58 BoogieIcfgContainer [2024-11-09 23:13:58,586 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:13:58,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:13:58,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:13:58,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:13:58,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:13:56" (1/3) ... [2024-11-09 23:13:58,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe7c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:58, skipping insertion in model container [2024-11-09 23:13:58,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:57" (2/3) ... [2024-11-09 23:13:58,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fe7c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:58, skipping insertion in model container [2024-11-09 23:13:58,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:13:58" (3/3) ... [2024-11-09 23:13:58,594 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product33.cil.c [2024-11-09 23:13:58,606 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:13:58,606 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:13:58,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:13:58,671 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;@3f1a1e34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:13:58,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:13:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 401 states, 312 states have (on average 1.483974358974359) internal successors, (463), 316 states have internal predecessors, (463), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-09 23:13:58,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:13:58,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:58,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:58,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:58,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash 437953279, now seen corresponding path program 1 times [2024-11-09 23:13:58,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:58,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089106563] [2024-11-09 23:13:58,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:58,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:13:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:13:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:13:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:13:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:13:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:13:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:13:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:13:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:13:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:13:59,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:13:59,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:59,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089106563] [2024-11-09 23:13:59,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089106563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:59,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492651538] [2024-11-09 23:13:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:59,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:59,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:59,307 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:13:59,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 23:13:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:59,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:13:59,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:13:59,596 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:59,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492651538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:59,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:59,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-09 23:13:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009886940] [2024-11-09 23:13:59,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:59,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:13:59,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:13:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:59,630 INFO L87 Difference]: Start difference. First operand has 401 states, 312 states have (on average 1.483974358974359) internal successors, (463), 316 states have internal predecessors, (463), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:13:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:59,683 INFO L93 Difference]: Finished difference Result 632 states and 913 transitions. [2024-11-09 23:13:59,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:13:59,687 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2024-11-09 23:13:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:59,699 INFO L225 Difference]: With dead ends: 632 [2024-11-09 23:13:59,699 INFO L226 Difference]: Without dead ends: 393 [2024-11-09 23:13:59,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:59,707 INFO L432 NwaCegarLoop]: 584 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, 584 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:59,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-09 23:13:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-09 23:13:59,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 305 states have (on average 1.478688524590164) internal successors, (451), 308 states have internal predecessors, (451), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-09 23:13:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 576 transitions. [2024-11-09 23:13:59,772 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 576 transitions. Word has length 102 [2024-11-09 23:13:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:59,773 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 576 transitions. [2024-11-09 23:13:59,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:13:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 576 transitions. [2024-11-09 23:13:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 23:13:59,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:59,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:59,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 23:13:59,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 23:13:59,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:59,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:59,981 INFO L85 PathProgramCache]: Analyzing trace with hash -118039271, now seen corresponding path program 1 times [2024-11-09 23:13:59,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:59,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941576655] [2024-11-09 23:13:59,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:59,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:14:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:14:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:14:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:14:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 23:14:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:14:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:14:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:14:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:14:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:14:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,232 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 23:14:00,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:00,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941576655] [2024-11-09 23:14:00,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941576655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:14:00,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078382961] [2024-11-09 23:14:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:00,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:00,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:14:00,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:14:00,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 23:14:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:14:00,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:14:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:14:00,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:14:00,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078382961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:00,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:14:00,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:14:00,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872613487] [2024-11-09 23:14:00,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:00,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:14:00,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:00,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:14:00,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:14:00,515 INFO L87 Difference]: Start difference. First operand 393 states and 576 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:00,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:00,549 INFO L93 Difference]: Finished difference Result 621 states and 893 transitions. [2024-11-09 23:14:00,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:14:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-09 23:14:00,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:00,552 INFO L225 Difference]: With dead ends: 621 [2024-11-09 23:14:00,552 INFO L226 Difference]: Without dead ends: 396 [2024-11-09 23:14:00,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:14:00,554 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 0 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:00,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1148 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:14:00,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-09 23:14:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2024-11-09 23:14:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 308 states have (on average 1.474025974025974) internal successors, (454), 311 states have internal predecessors, (454), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-09 23:14:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 579 transitions. [2024-11-09 23:14:00,575 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 579 transitions. Word has length 104 [2024-11-09 23:14:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:00,576 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 579 transitions. [2024-11-09 23:14:00,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 579 transitions. [2024-11-09 23:14:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 23:14:00,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:00,578 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:00,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 23:14:00,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-09 23:14:00,779 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:00,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:00,780 INFO L85 PathProgramCache]: Analyzing trace with hash -496849853, now seen corresponding path program 1 times [2024-11-09 23:14:00,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735332491] [2024-11-09 23:14:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:14:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:14:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:14:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:14:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:14:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:14:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:14:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:14:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:14:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:14:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,959 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:14:00,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735332491] [2024-11-09 23:14:00,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735332491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:14:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941667333] [2024-11-09 23:14:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:00,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:00,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:14:00,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:14:00,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 23:14:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:14:01,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:14:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 23:14:01,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:14:01,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941667333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:01,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:14:01,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:14:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839885135] [2024-11-09 23:14:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:01,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:14:01,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:14:01,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:14:01,230 INFO L87 Difference]: Start difference. First operand 396 states and 579 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:01,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:01,265 INFO L93 Difference]: Finished difference Result 836 states and 1234 transitions. [2024-11-09 23:14:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:14:01,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-09 23:14:01,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:01,268 INFO L225 Difference]: With dead ends: 836 [2024-11-09 23:14:01,268 INFO L226 Difference]: Without dead ends: 468 [2024-11-09 23:14:01,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:14:01,273 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 125 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:01,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1121 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:14:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-09 23:14:01,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 460. [2024-11-09 23:14:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 361 states have (on average 1.479224376731302) internal successors, (534), 364 states have internal predecessors, (534), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-09 23:14:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 681 transitions. [2024-11-09 23:14:01,302 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 681 transitions. Word has length 114 [2024-11-09 23:14:01,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:01,303 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 681 transitions. [2024-11-09 23:14:01,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:01,303 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 681 transitions. [2024-11-09 23:14:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 23:14:01,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:01,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:01,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 23:14:01,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:01,507 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:01,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1917925880, now seen corresponding path program 1 times [2024-11-09 23:14:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:01,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995807603] [2024-11-09 23:14:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:01,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:14:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:14:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:14:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:14:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:14:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:14:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:14:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:14:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:14:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:14:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:14:01,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995807603] [2024-11-09 23:14:01,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995807603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:14:01,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636674304] [2024-11-09 23:14:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:01,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:01,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:14:01,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:14:01,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 23:14:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:01,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:14:01,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:14:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:14:01,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:14:01,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636674304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:01,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:14:01,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:14:01,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209511590] [2024-11-09 23:14:01,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:01,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:14:01,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:14:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:14:01,987 INFO L87 Difference]: Start difference. First operand 460 states and 681 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:02,036 INFO L93 Difference]: Finished difference Result 911 states and 1352 transitions. [2024-11-09 23:14:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:14:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-09 23:14:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:02,039 INFO L225 Difference]: With dead ends: 911 [2024-11-09 23:14:02,039 INFO L226 Difference]: Without dead ends: 462 [2024-11-09 23:14:02,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:14:02,041 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 2 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:02,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2261 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:14:02,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-09 23:14:02,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-11-09 23:14:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 362 states have (on average 1.477900552486188) internal successors, (535), 366 states have internal predecessors, (535), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2024-11-09 23:14:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 684 transitions. [2024-11-09 23:14:02,056 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 684 transitions. Word has length 115 [2024-11-09 23:14:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:02,057 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 684 transitions. [2024-11-09 23:14:02,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 684 transitions. [2024-11-09 23:14:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 23:14:02,058 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:02,058 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:02,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 23:14:02,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:02,259 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:02,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2045413173, now seen corresponding path program 1 times [2024-11-09 23:14:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:02,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097212093] [2024-11-09 23:14:02,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:02,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:14:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:14:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:14:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:14:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:14:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:14:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:14:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:14:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:14:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:14:02,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097212093] [2024-11-09 23:14:02,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097212093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:14:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964027439] [2024-11-09 23:14:02,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:02,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:02,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:14:02,441 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:14:02,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 23:14:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:02,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:14:02,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:14:02,762 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 23:14:02,762 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:14:02,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964027439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:02,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:14:02,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 23:14:02,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618411820] [2024-11-09 23:14:02,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:02,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:14:02,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:02,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:14:02,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:14:02,765 INFO L87 Difference]: Start difference. First operand 462 states and 684 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:02,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:02,821 INFO L93 Difference]: Finished difference Result 913 states and 1357 transitions. [2024-11-09 23:14:02,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:14:02,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2024-11-09 23:14:02,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:02,825 INFO L225 Difference]: With dead ends: 913 [2024-11-09 23:14:02,825 INFO L226 Difference]: Without dead ends: 464 [2024-11-09 23:14:02,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:14:02,826 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 2 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:02,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2247 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:14:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-09 23:14:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-11-09 23:14:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 363 states have (on average 1.4765840220385675) internal successors, (536), 368 states have internal predecessors, (536), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-09 23:14:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 690 transitions. [2024-11-09 23:14:02,842 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 690 transitions. Word has length 116 [2024-11-09 23:14:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:02,842 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 690 transitions. [2024-11-09 23:14:02,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 690 transitions. [2024-11-09 23:14:02,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 23:14:02,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:02,844 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:02,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 23:14:03,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:03,045 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:03,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1092428184, now seen corresponding path program 1 times [2024-11-09 23:14:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:03,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799018589] [2024-11-09 23:14:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:03,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:14:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:14:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:14:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:14:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:14:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:14:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:14:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:14:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:14:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:03,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799018589] [2024-11-09 23:14:03,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799018589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:03,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:03,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:14:03,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738705673] [2024-11-09 23:14:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:03,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:14:03,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:14:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:14:03,197 INFO L87 Difference]: Start difference. First operand 464 states and 690 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:05,042 INFO L93 Difference]: Finished difference Result 1121 states and 1680 transitions. [2024-11-09 23:14:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:14:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2024-11-09 23:14:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:05,047 INFO L225 Difference]: With dead ends: 1121 [2024-11-09 23:14:05,047 INFO L226 Difference]: Without dead ends: 680 [2024-11-09 23:14:05,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:14:05,049 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1431 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 3233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:05,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1252 Invalid, 3233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 23:14:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-11-09 23:14:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 464. [2024-11-09 23:14:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 363 states have (on average 1.4765840220385675) internal successors, (536), 368 states have internal predecessors, (536), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2024-11-09 23:14:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 689 transitions. [2024-11-09 23:14:05,085 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 689 transitions. Word has length 117 [2024-11-09 23:14:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:05,085 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 689 transitions. [2024-11-09 23:14:05,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 689 transitions. [2024-11-09 23:14:05,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-09 23:14:05,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:05,088 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:05,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:14:05,088 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:05,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1535607325, now seen corresponding path program 2 times [2024-11-09 23:14:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:05,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267547113] [2024-11-09 23:14:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:05,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:14:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:14:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:14:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:14:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:14:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:14:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:14:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:14:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-09 23:14:05,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:05,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267547113] [2024-11-09 23:14:05,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267547113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:05,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:05,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:14:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231319243] [2024-11-09 23:14:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:05,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:14:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:14:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:14:05,257 INFO L87 Difference]: Start difference. First operand 464 states and 689 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:06,942 INFO L93 Difference]: Finished difference Result 1123 states and 1683 transitions. [2024-11-09 23:14:06,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:14:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2024-11-09 23:14:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:06,950 INFO L225 Difference]: With dead ends: 1123 [2024-11-09 23:14:06,950 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 23:14:06,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:14:06,952 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1450 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:06,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 1252 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 23:14:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 23:14:06,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 466. [2024-11-09 23:14:06,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.4752747252747254) internal successors, (537), 370 states have internal predecessors, (537), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (81), 73 states have call predecessors, (81), 73 states have call successors, (81) [2024-11-09 23:14:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 692 transitions. [2024-11-09 23:14:06,978 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 692 transitions. Word has length 118 [2024-11-09 23:14:06,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:06,979 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 692 transitions. [2024-11-09 23:14:06,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 23:14:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 692 transitions. [2024-11-09 23:14:06,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 23:14:06,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:06,980 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:06,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:14:06,981 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:06,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:06,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1794404875, now seen corresponding path program 1 times [2024-11-09 23:14:06,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:06,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449953312] [2024-11-09 23:14:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:14:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 23:14:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:14:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:14:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:14:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:14:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:14:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:14:07,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:07,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449953312] [2024-11-09 23:14:07,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449953312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:07,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:07,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:14:07,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122318552] [2024-11-09 23:14:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:07,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:14:07,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:14:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:14:07,152 INFO L87 Difference]: Start difference. First operand 466 states and 692 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:14:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:09,368 INFO L93 Difference]: Finished difference Result 1121 states and 1678 transitions. [2024-11-09 23:14:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:14:09,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 119 [2024-11-09 23:14:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:09,372 INFO L225 Difference]: With dead ends: 1121 [2024-11-09 23:14:09,372 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 23:14:09,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:14:09,375 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1513 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 4306 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 4835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 4306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:09,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1733 Invalid, 4835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 4306 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 23:14:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 23:14:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 466. [2024-11-09 23:14:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 364 states have (on average 1.4752747252747254) internal successors, (537), 370 states have internal predecessors, (537), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-09 23:14:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 691 transitions. [2024-11-09 23:14:09,401 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 691 transitions. Word has length 119 [2024-11-09 23:14:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:09,401 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 691 transitions. [2024-11-09 23:14:09,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:14:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 691 transitions. [2024-11-09 23:14:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:14:09,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:09,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:09,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:14:09,403 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:09,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2077672750, now seen corresponding path program 2 times [2024-11-09 23:14:09,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:09,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600901094] [2024-11-09 23:14:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:09,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:14:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:14:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:14:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:14:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:14:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:14:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:14:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 23:14:09,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:09,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600901094] [2024-11-09 23:14:09,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600901094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:09,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:09,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:14:09,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417464482] [2024-11-09 23:14:09,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:09,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:14:09,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:09,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:14:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:14:09,583 INFO L87 Difference]: Start difference. First operand 466 states and 691 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:14:11,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:11,904 INFO L93 Difference]: Finished difference Result 1123 states and 1684 transitions. [2024-11-09 23:14:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:14:11,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 120 [2024-11-09 23:14:11,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:11,907 INFO L225 Difference]: With dead ends: 1123 [2024-11-09 23:14:11,907 INFO L226 Difference]: Without dead ends: 684 [2024-11-09 23:14:11,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:14:11,910 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1314 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:11,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1734 Invalid, 5421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 23:14:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2024-11-09 23:14:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 468. [2024-11-09 23:14:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 365 states have (on average 1.473972602739726) internal successors, (538), 372 states have internal predecessors, (538), 74 states have call successors, (74), 24 states have call predecessors, (74), 28 states have return successors, (85), 73 states have call predecessors, (85), 73 states have call successors, (85) [2024-11-09 23:14:11,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 697 transitions. [2024-11-09 23:14:11,932 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 697 transitions. Word has length 120 [2024-11-09 23:14:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:11,934 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 697 transitions. [2024-11-09 23:14:11,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 23:14:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 697 transitions. [2024-11-09 23:14:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:14:11,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:11,936 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:11,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:14:11,936 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:11,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1443541422, now seen corresponding path program 1 times [2024-11-09 23:14:11,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:11,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539274257] [2024-11-09 23:14:11,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:11,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:14:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:14:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:14:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:14:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:14:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:14:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:14:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 23:14:12,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:12,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539274257] [2024-11-09 23:14:12,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539274257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:14:12,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337938443] [2024-11-09 23:14:12,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:12,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:14:12,095 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 23:14:12,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 23:14:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:12,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:14:12,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:14:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:12,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:14:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:12,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337938443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:14:12,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:14:12,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-09 23:14:12,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514254406] [2024-11-09 23:14:12,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:14:12,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 23:14:12,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:12,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 23:14:12,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:14:12,458 INFO L87 Difference]: Start difference. First operand 468 states and 697 transitions. Second operand has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 23:14:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:14,727 INFO L93 Difference]: Finished difference Result 1548 states and 2406 transitions. [2024-11-09 23:14:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 23:14:14,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 121 [2024-11-09 23:14:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:14,734 INFO L225 Difference]: With dead ends: 1548 [2024-11-09 23:14:14,734 INFO L226 Difference]: Without dead ends: 1112 [2024-11-09 23:14:14,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-09 23:14:14,736 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 2617 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 5218 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2634 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 6063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 5218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:14,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2634 Valid, 1951 Invalid, 6063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 5218 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 23:14:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-11-09 23:14:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 872. [2024-11-09 23:14:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 705 states have (on average 1.50354609929078) internal successors, (1060), 712 states have internal predecessors, (1060), 138 states have call successors, (138), 24 states have call predecessors, (138), 28 states have return successors, (159), 137 states have call predecessors, (159), 137 states have call successors, (159) [2024-11-09 23:14:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1357 transitions. [2024-11-09 23:14:14,772 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1357 transitions. Word has length 121 [2024-11-09 23:14:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:14,773 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 1357 transitions. [2024-11-09 23:14:14,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.142857142857142) internal successors, (142), 11 states have internal predecessors, (142), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-09 23:14:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1357 transitions. [2024-11-09 23:14:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 23:14:14,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:14,776 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, 1] [2024-11-09 23:14:14,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 23:14:14,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:14:14,976 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:14,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash -91515015, now seen corresponding path program 1 times [2024-11-09 23:14:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466539287] [2024-11-09 23:14:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:14:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:14:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:14:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:14:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:14:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:14:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:14:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:15,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:15,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466539287] [2024-11-09 23:14:15,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466539287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:15,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:15,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:15,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861866215] [2024-11-09 23:14:15,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:15,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:15,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:15,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:15,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:15,068 INFO L87 Difference]: Start difference. First operand 872 states and 1357 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:16,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:16,221 INFO L93 Difference]: Finished difference Result 2265 states and 3587 transitions. [2024-11-09 23:14:16,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:16,222 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-09 23:14:16,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:16,227 INFO L225 Difference]: With dead ends: 2265 [2024-11-09 23:14:16,227 INFO L226 Difference]: Without dead ends: 1473 [2024-11-09 23:14:16,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:16,229 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 1530 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:16,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 970 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:14:16,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2024-11-09 23:14:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1249. [2024-11-09 23:14:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1018 states have (on average 1.5098231827111985) internal successors, (1537), 1025 states have internal predecessors, (1537), 202 states have call successors, (202), 24 states have call predecessors, (202), 28 states have return successors, (233), 201 states have call predecessors, (233), 201 states have call successors, (233) [2024-11-09 23:14:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1972 transitions. [2024-11-09 23:14:16,271 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1972 transitions. Word has length 132 [2024-11-09 23:14:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:16,272 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 1972 transitions. [2024-11-09 23:14:16,272 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:16,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1972 transitions. [2024-11-09 23:14:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 23:14:16,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:16,276 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, 1, 1] [2024-11-09 23:14:16,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:14:16,276 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:16,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:16,276 INFO L85 PathProgramCache]: Analyzing trace with hash 594113466, now seen corresponding path program 1 times [2024-11-09 23:14:16,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:16,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028627318] [2024-11-09 23:14:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:16,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:14:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:14:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:14:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:14:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:14:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:14:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:14:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:16,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:16,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:16,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028627318] [2024-11-09 23:14:16,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028627318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:16,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:16,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355624238] [2024-11-09 23:14:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:16,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:16,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:16,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:16,354 INFO L87 Difference]: Start difference. First operand 1249 states and 1972 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:17,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:17,477 INFO L93 Difference]: Finished difference Result 3200 states and 5101 transitions. [2024-11-09 23:14:17,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:17,478 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2024-11-09 23:14:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:17,486 INFO L225 Difference]: With dead ends: 3200 [2024-11-09 23:14:17,486 INFO L226 Difference]: Without dead ends: 2090 [2024-11-09 23:14:17,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:17,489 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1516 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:17,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 915 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:14:17,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-09 23:14:17,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1866. [2024-11-09 23:14:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1540 states have (on average 1.511038961038961) internal successors, (2327), 1547 states have internal predecessors, (2327), 297 states have call successors, (297), 24 states have call predecessors, (297), 28 states have return successors, (328), 296 states have call predecessors, (328), 296 states have call successors, (328) [2024-11-09 23:14:17,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2952 transitions. [2024-11-09 23:14:17,554 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2952 transitions. Word has length 133 [2024-11-09 23:14:17,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:17,554 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 2952 transitions. [2024-11-09 23:14:17,555 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:17,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2952 transitions. [2024-11-09 23:14:17,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 23:14:17,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:17,560 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, 1, 1, 1] [2024-11-09 23:14:17,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:14:17,561 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:17,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 338331801, now seen corresponding path program 1 times [2024-11-09 23:14:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:17,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784789551] [2024-11-09 23:14:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:17,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:14:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:14:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:14:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:14:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:14:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:14:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:14:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:17,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784789551] [2024-11-09 23:14:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784789551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:17,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:17,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:17,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405705533] [2024-11-09 23:14:17,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:17,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:17,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:17,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:17,671 INFO L87 Difference]: Start difference. First operand 1866 states and 2952 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:18,910 INFO L93 Difference]: Finished difference Result 4614 states and 7394 transitions. [2024-11-09 23:14:18,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:18,910 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2024-11-09 23:14:18,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:18,923 INFO L225 Difference]: With dead ends: 4614 [2024-11-09 23:14:18,923 INFO L226 Difference]: Without dead ends: 3036 [2024-11-09 23:14:18,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:18,927 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1503 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:18,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 913 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:14:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2024-11-09 23:14:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 2812. [2024-11-09 23:14:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2812 states, 2363 states have (on average 1.5112145577655522) internal successors, (3571), 2370 states have internal predecessors, (3571), 420 states have call successors, (420), 24 states have call predecessors, (420), 28 states have return successors, (467), 419 states have call predecessors, (467), 419 states have call successors, (467) [2024-11-09 23:14:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2812 states to 2812 states and 4458 transitions. [2024-11-09 23:14:19,035 INFO L78 Accepts]: Start accepts. Automaton has 2812 states and 4458 transitions. Word has length 134 [2024-11-09 23:14:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:19,035 INFO L471 AbstractCegarLoop]: Abstraction has 2812 states and 4458 transitions. [2024-11-09 23:14:19,035 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 2812 states and 4458 transitions. [2024-11-09 23:14:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-09 23:14:19,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:19,043 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, 1, 1, 1, 1] [2024-11-09 23:14:19,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:14:19,043 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:19,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1797267706, now seen corresponding path program 1 times [2024-11-09 23:14:19,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:19,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152055436] [2024-11-09 23:14:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:19,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:14:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:14:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:14:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-09 23:14:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:14:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:14:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:14:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:19,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:19,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152055436] [2024-11-09 23:14:19,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152055436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:19,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:19,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:19,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184510131] [2024-11-09 23:14:19,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:19,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:19,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:19,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:19,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:19,120 INFO L87 Difference]: Start difference. First operand 2812 states and 4458 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:20,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:20,295 INFO L93 Difference]: Finished difference Result 6840 states and 10996 transitions. [2024-11-09 23:14:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:20,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 135 [2024-11-09 23:14:20,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:20,316 INFO L225 Difference]: With dead ends: 6840 [2024-11-09 23:14:20,316 INFO L226 Difference]: Without dead ends: 4561 [2024-11-09 23:14:20,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:20,321 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 1581 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:20,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 913 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:14:20,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4561 states. [2024-11-09 23:14:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4561 to 4337. [2024-11-09 23:14:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4337 states, 3709 states have (on average 1.5098409274737126) internal successors, (5600), 3716 states have internal predecessors, (5600), 599 states have call successors, (599), 24 states have call predecessors, (599), 28 states have return successors, (672), 598 states have call predecessors, (672), 598 states have call successors, (672) [2024-11-09 23:14:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4337 states to 4337 states and 6871 transitions. [2024-11-09 23:14:20,460 INFO L78 Accepts]: Start accepts. Automaton has 4337 states and 6871 transitions. Word has length 135 [2024-11-09 23:14:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:20,461 INFO L471 AbstractCegarLoop]: Abstraction has 4337 states and 6871 transitions. [2024-11-09 23:14:20,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 4337 states and 6871 transitions. [2024-11-09 23:14:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 23:14:20,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:20,469 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, 1, 1, 1, 1, 1] [2024-11-09 23:14:20,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:14:20,470 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:20,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:20,470 INFO L85 PathProgramCache]: Analyzing trace with hash 951639577, now seen corresponding path program 1 times [2024-11-09 23:14:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080197993] [2024-11-09 23:14:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:14:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:14:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:14:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-09 23:14:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:14:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:14:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:14:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:20,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:20,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080197993] [2024-11-09 23:14:20,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080197993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:20,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:20,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392935818] [2024-11-09 23:14:20,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:20,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:20,554 INFO L87 Difference]: Start difference. First operand 4337 states and 6871 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:21,789 INFO L93 Difference]: Finished difference Result 10538 states and 16955 transitions. [2024-11-09 23:14:21,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:21,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 136 [2024-11-09 23:14:21,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:21,815 INFO L225 Difference]: With dead ends: 10538 [2024-11-09 23:14:21,815 INFO L226 Difference]: Without dead ends: 7108 [2024-11-09 23:14:21,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:21,823 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 1460 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1691 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 1691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:21,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 976 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 1691 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:14:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7108 states. [2024-11-09 23:14:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7108 to 6884. [2024-11-09 23:14:22,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 5880 states have (on average 1.4986394557823128) internal successors, (8812), 5887 states have internal predecessors, (8812), 975 states have call successors, (975), 24 states have call predecessors, (975), 28 states have return successors, (1092), 974 states have call predecessors, (1092), 974 states have call successors, (1092) [2024-11-09 23:14:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 10879 transitions. [2024-11-09 23:14:22,086 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 10879 transitions. Word has length 136 [2024-11-09 23:14:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:22,086 INFO L471 AbstractCegarLoop]: Abstraction has 6884 states and 10879 transitions. [2024-11-09 23:14:22,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 10879 transitions. [2024-11-09 23:14:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-09 23:14:22,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:22,099 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, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:22,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:14:22,100 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:22,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash 78120634, now seen corresponding path program 1 times [2024-11-09 23:14:22,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:22,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037835332] [2024-11-09 23:14:22,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:22,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:14:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:14:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:14:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:14:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:14:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:14:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-09 23:14:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:22,175 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:22,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:22,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037835332] [2024-11-09 23:14:22,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037835332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:22,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:22,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:22,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068046170] [2024-11-09 23:14:22,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:22,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:22,176 INFO L87 Difference]: Start difference. First operand 6884 states and 10879 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:23,506 INFO L93 Difference]: Finished difference Result 17241 states and 27654 transitions. [2024-11-09 23:14:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:23,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 137 [2024-11-09 23:14:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:23,539 INFO L225 Difference]: With dead ends: 17241 [2024-11-09 23:14:23,539 INFO L226 Difference]: Without dead ends: 11728 [2024-11-09 23:14:23,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:23,553 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1434 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:23,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 945 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1688 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:14:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2024-11-09 23:14:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 11504. [2024-11-09 23:14:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11504 states, 9894 states have (on average 1.493127147766323) internal successors, (14773), 9901 states have internal predecessors, (14773), 1581 states have call successors, (1581), 24 states have call predecessors, (1581), 28 states have return successors, (1776), 1580 states have call predecessors, (1776), 1580 states have call successors, (1776) [2024-11-09 23:14:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11504 states to 11504 states and 18130 transitions. [2024-11-09 23:14:23,860 INFO L78 Accepts]: Start accepts. Automaton has 11504 states and 18130 transitions. Word has length 137 [2024-11-09 23:14:23,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:23,860 INFO L471 AbstractCegarLoop]: Abstraction has 11504 states and 18130 transitions. [2024-11-09 23:14:23,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11504 states and 18130 transitions. [2024-11-09 23:14:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:14:23,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:23,876 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:23,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:14:23,876 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:23,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:23,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1400806599, now seen corresponding path program 1 times [2024-11-09 23:14:23,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583832712] [2024-11-09 23:14:23,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:23,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:23,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:23,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:23,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:23,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:14:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:14:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:14:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:14:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:14:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-09 23:14:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 23:14:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:24,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:24,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583832712] [2024-11-09 23:14:24,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583832712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:24,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:24,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559400860] [2024-11-09 23:14:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:24,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:24,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:24,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:24,027 INFO L87 Difference]: Start difference. First operand 11504 states and 18130 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:25,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:25,494 INFO L93 Difference]: Finished difference Result 30005 states and 47990 transitions. [2024-11-09 23:14:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:25,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-09 23:14:25,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:25,548 INFO L225 Difference]: With dead ends: 30005 [2024-11-09 23:14:25,548 INFO L226 Difference]: Without dead ends: 20440 [2024-11-09 23:14:25,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:25,570 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1499 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:25,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 942 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:14:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20440 states. [2024-11-09 23:14:26,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20440 to 20216. [2024-11-09 23:14:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20216 states, 17403 states have (on average 1.4835373211515257) internal successors, (25818), 17410 states have internal predecessors, (25818), 2784 states have call successors, (2784), 24 states have call predecessors, (2784), 28 states have return successors, (3123), 2783 states have call predecessors, (3123), 2783 states have call successors, (3123) [2024-11-09 23:14:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20216 states to 20216 states and 31725 transitions. [2024-11-09 23:14:26,136 INFO L78 Accepts]: Start accepts. Automaton has 20216 states and 31725 transitions. Word has length 138 [2024-11-09 23:14:26,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:26,136 INFO L471 AbstractCegarLoop]: Abstraction has 20216 states and 31725 transitions. [2024-11-09 23:14:26,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:26,137 INFO L276 IsEmpty]: Start isEmpty. Operand 20216 states and 31725 transitions. [2024-11-09 23:14:26,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 23:14:26,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:26,155 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:26,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:14:26,156 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:26,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1607339834, now seen corresponding path program 1 times [2024-11-09 23:14:26,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:26,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064785396] [2024-11-09 23:14:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:26,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:14:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:14:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:14:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:14:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:14:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-09 23:14:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-09 23:14:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:26,242 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:26,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:26,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064785396] [2024-11-09 23:14:26,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064785396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:26,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:26,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:26,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961812662] [2024-11-09 23:14:26,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:26,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:26,244 INFO L87 Difference]: Start difference. First operand 20216 states and 31725 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:27,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:27,834 INFO L93 Difference]: Finished difference Result 53963 states and 85985 transitions. [2024-11-09 23:14:27,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:27,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2024-11-09 23:14:27,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:27,927 INFO L225 Difference]: With dead ends: 53963 [2024-11-09 23:14:27,927 INFO L226 Difference]: Without dead ends: 36477 [2024-11-09 23:14:27,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:27,961 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1588 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:27,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 917 Invalid, 2111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 23:14:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36477 states. [2024-11-09 23:14:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36477 to 36253. [2024-11-09 23:14:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36253 states, 31401 states have (on average 1.4769593325053343) internal successors, (46378), 31408 states have internal predecessors, (46378), 4823 states have call successors, (4823), 24 states have call predecessors, (4823), 28 states have return successors, (5436), 4822 states have call predecessors, (5436), 4822 states have call successors, (5436) [2024-11-09 23:14:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36253 states to 36253 states and 56637 transitions. [2024-11-09 23:14:29,231 INFO L78 Accepts]: Start accepts. Automaton has 36253 states and 56637 transitions. Word has length 139 [2024-11-09 23:14:29,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:29,233 INFO L471 AbstractCegarLoop]: Abstraction has 36253 states and 56637 transitions. [2024-11-09 23:14:29,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:29,233 INFO L276 IsEmpty]: Start isEmpty. Operand 36253 states and 56637 transitions. [2024-11-09 23:14:29,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 23:14:29,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:29,253 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:29,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:14:29,253 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:29,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1786690503, now seen corresponding path program 1 times [2024-11-09 23:14:29,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:29,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602106427] [2024-11-09 23:14:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:29,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:14:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:14:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:14:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:14:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:14:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-09 23:14:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 23:14:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:29,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602106427] [2024-11-09 23:14:29,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602106427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:29,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:29,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256639857] [2024-11-09 23:14:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:29,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:29,339 INFO L87 Difference]: Start difference. First operand 36253 states and 56637 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:31,596 INFO L93 Difference]: Finished difference Result 99527 states and 157336 transitions. [2024-11-09 23:14:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:31,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2024-11-09 23:14:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:31,802 INFO L225 Difference]: With dead ends: 99527 [2024-11-09 23:14:31,802 INFO L226 Difference]: Without dead ends: 66962 [2024-11-09 23:14:31,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:31,868 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 1537 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:31,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 956 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:14:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66962 states. [2024-11-09 23:14:33,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66962 to 66738. [2024-11-09 23:14:33,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66738 states, 58171 states have (on average 1.469546681336061) internal successors, (85485), 58178 states have internal predecessors, (85485), 8538 states have call successors, (8538), 24 states have call predecessors, (8538), 28 states have return successors, (9683), 8537 states have call predecessors, (9683), 8537 states have call successors, (9683) [2024-11-09 23:14:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66738 states to 66738 states and 103706 transitions. [2024-11-09 23:14:34,171 INFO L78 Accepts]: Start accepts. Automaton has 66738 states and 103706 transitions. Word has length 140 [2024-11-09 23:14:34,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:34,172 INFO L471 AbstractCegarLoop]: Abstraction has 66738 states and 103706 transitions. [2024-11-09 23:14:34,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 66738 states and 103706 transitions. [2024-11-09 23:14:34,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 23:14:34,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:34,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:34,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:14:34,198 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:34,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:34,198 INFO L85 PathProgramCache]: Analyzing trace with hash 693245978, now seen corresponding path program 1 times [2024-11-09 23:14:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:34,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431124422] [2024-11-09 23:14:34,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:34,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:14:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:14:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:14:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:14:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:14:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-09 23:14:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-09 23:14:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:34,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:34,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431124422] [2024-11-09 23:14:34,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431124422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:34,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:34,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:14:34,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072775510] [2024-11-09 23:14:34,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:34,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:14:34,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:34,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:14:34,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:14:34,313 INFO L87 Difference]: Start difference. First operand 66738 states and 103706 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:37,593 INFO L93 Difference]: Finished difference Result 125676 states and 198415 transitions. [2024-11-09 23:14:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:14:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 141 [2024-11-09 23:14:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:38,012 INFO L225 Difference]: With dead ends: 125676 [2024-11-09 23:14:38,013 INFO L226 Difference]: Without dead ends: 125451 [2024-11-09 23:14:38,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:14:38,065 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 1383 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:38,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 954 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:14:38,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125451 states. [2024-11-09 23:14:40,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125451 to 125227. [2024-11-09 23:14:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125227 states, 109861 states have (on average 1.4612191769599767) internal successors, (160531), 109868 states have internal predecessors, (160531), 15337 states have call successors, (15337), 24 states have call predecessors, (15337), 28 states have return successors, (17528), 15336 states have call predecessors, (17528), 15336 states have call successors, (17528) [2024-11-09 23:14:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125227 states to 125227 states and 193396 transitions. [2024-11-09 23:14:41,456 INFO L78 Accepts]: Start accepts. Automaton has 125227 states and 193396 transitions. Word has length 141 [2024-11-09 23:14:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:41,456 INFO L471 AbstractCegarLoop]: Abstraction has 125227 states and 193396 transitions. [2024-11-09 23:14:41,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 23:14:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 125227 states and 193396 transitions. [2024-11-09 23:14:41,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 23:14:41,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:41,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:41,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:14:41,482 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:41,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash -562587335, now seen corresponding path program 1 times [2024-11-09 23:14:41,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:41,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946958197] [2024-11-09 23:14:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:14:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:14:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:14:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:14:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:41,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:14:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:42,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-09 23:14:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:42,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 23:14:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:14:42,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:42,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946958197] [2024-11-09 23:14:42,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946958197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:42,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:42,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-09 23:14:42,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424761519] [2024-11-09 23:14:42,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:42,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 23:14:42,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 23:14:42,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-09 23:14:42,034 INFO L87 Difference]: Start difference. First operand 125227 states and 193396 transitions. Second operand has 18 states, 16 states have (on average 6.3125) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 23:14:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:52,380 INFO L93 Difference]: Finished difference Result 250625 states and 399081 transitions. [2024-11-09 23:14:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-09 23:14:52,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.3125) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 142 [2024-11-09 23:14:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:53,389 INFO L225 Difference]: With dead ends: 250625 [2024-11-09 23:14:53,389 INFO L226 Difference]: Without dead ends: 250406 [2024-11-09 23:14:53,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-09 23:14:53,467 INFO L432 NwaCegarLoop]: 249 mSDtfsCounter, 5133 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 14756 mSolverCounterSat, 1889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 16645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 14756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:53,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 3269 Invalid, 16645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1889 Valid, 14756 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-09 23:14:53,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250406 states. [2024-11-09 23:15:00,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250406 to 249407. [2024-11-09 23:15:00,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249407 states, 218841 states have (on average 1.4619609670948315) internal successors, (319937), 218746 states have internal predecessors, (319937), 30491 states have call successors, (30491), 65 states have call predecessors, (30491), 74 states have return successors, (38155), 30601 states have call predecessors, (38155), 30488 states have call successors, (38155) [2024-11-09 23:15:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249407 states to 249407 states and 388583 transitions. [2024-11-09 23:15:02,018 INFO L78 Accepts]: Start accepts. Automaton has 249407 states and 388583 transitions. Word has length 142 [2024-11-09 23:15:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:15:02,019 INFO L471 AbstractCegarLoop]: Abstraction has 249407 states and 388583 transitions. [2024-11-09 23:15:02,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.3125) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 23:15:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 249407 states and 388583 transitions. [2024-11-09 23:15:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 23:15:02,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:15:02,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:15:02,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:15:02,070 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:15:02,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:15:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash 468612552, now seen corresponding path program 1 times [2024-11-09 23:15:02,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:15:02,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315389947] [2024-11-09 23:15:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:15:02,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:15:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:15:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:15:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:15:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:15:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:15:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:15:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:15:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:15:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:15:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:15:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:15:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-09 23:15:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-09 23:15:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:15:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 23:15:02,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:15:02,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315389947] [2024-11-09 23:15:02,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315389947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:15:02,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:15:02,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 23:15:02,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884318686] [2024-11-09 23:15:02,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:15:02,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 23:15:02,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:15:02,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 23:15:02,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-09 23:15:02,308 INFO L87 Difference]: Start difference. First operand 249407 states and 388583 transitions. Second operand has 14 states, 12 states have (on average 8.5) internal successors, (102), 9 states have internal predecessors, (102), 6 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13)