./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec9_product16.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_product16.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 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:12:59,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:13:00,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:13:00,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:13:00,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:13:00,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:13:00,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:13:00,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:13:00,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:13:00,084 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:13:00,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:13:00,084 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:13:00,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:13:00,085 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:13:00,086 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:13:00,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:13:00,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:13:00,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:13:00,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:13:00,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:13:00,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:13:00,090 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:13:00,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:13:00,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:13:00,091 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:13:00,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:13:00,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:13:00,092 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:13:00,092 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:13:00,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:13:00,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:13:00,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:13:00,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:13:00,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:13:00,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:13:00,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:13:00,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:13:00,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:13:00,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:13:00,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:13:00,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:13:00,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:13:00,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47500ba035fb95802358be3af8dbcb0499051de1fc18562b910c6b7689271057 [2024-11-09 23:13:00,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:13:00,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:13:00,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:13:00,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:13:00,362 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:13:00,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2024-11-09 23:13:01,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:13:02,066 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:13:02,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec9_product16.cil.c [2024-11-09 23:13:02,096 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a91572f82/34b32c1b527b4e16a626d0203fad87ca/FLAG927685b4a [2024-11-09 23:13:02,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a91572f82/34b32c1b527b4e16a626d0203fad87ca [2024-11-09 23:13:02,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:13:02,119 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:13:02,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:13:02,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:13:02,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:13:02,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:02,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed71880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02, skipping insertion in model container [2024-11-09 23:13:02,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:02,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:13:02,668 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_product16.cil.c[33283,33296] [2024-11-09 23:13:02,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:13:02,812 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:13:02,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [48] [2024-11-09 23:13:02,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [105] [2024-11-09 23:13:02,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [216] [2024-11-09 23:13:02,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [233] [2024-11-09 23:13:02,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [599] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1004] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1278] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1316] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1541] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1550] [2024-11-09 23:13:02,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1832] [2024-11-09 23:13:02,900 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_product16.cil.c[33283,33296] [2024-11-09 23:13:02,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:13:02,991 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:13:02,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02 WrapperNode [2024-11-09 23:13:02,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:13:02,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:13:02,992 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:13:02,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:13:02,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,073 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 1002 [2024-11-09 23:13:03,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:13:03,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:13:03,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:13:03,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:13:03,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,118 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 23:13:03,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,135 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:13:03,152 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:13:03,152 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:13:03,152 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:13:03,153 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (1/1) ... [2024-11-09 23:13:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:13:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:03,201 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 23:13:03,204 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 23:13:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 23:13:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 23:13:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 23:13:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 23:13:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 23:13:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 23:13:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 23:13:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 23:13:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 23:13:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 23:13:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 23:13:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 23:13:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 23:13:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 23:13:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 23:13:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 23:13:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:13:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 23:13:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 23:13:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 23:13:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 23:13:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 23:13:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 23:13:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 23:13:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 23:13:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 23:13:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 23:13:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 23:13:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 23:13:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 23:13:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:13:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:13:03,468 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:13:03,473 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:13:03,834 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2876-1: getClientId_#res#1 := getClientId_~retValue_acc~43#1; [2024-11-09 23:13:03,834 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L169-1: isReadable__wrappee__Keys_#res#1 := isReadable__wrappee__Keys_~retValue_acc~0#1; [2024-11-09 23:13:03,834 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L648-1: getEmailId_#res#1 := getEmailId_~retValue_acc~9#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2829-1: getClientForwardReceiver_#res#1 := getClientForwardReceiver_~retValue_acc~42#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2441-1: getClientPrivateKey_#res#1 := getClientPrivateKey_~retValue_acc~36#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1253-1: isKeyPairValid_#res#1 := isKeyPairValid_~retValue_acc~23#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2757-1: findPublicKey_#res#1 := findPublicKey_~retValue_acc~41#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L189-1: isReadable_#res#1 := isReadable_~retValue_acc~1#1; [2024-11-09 23:13:03,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L685-1: getEmailFrom_#res#1 := getEmailFrom_~retValue_acc~10#1; [2024-11-09 23:13:03,872 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: #res := ~retValue_acc~11; [2024-11-09 23:13:03,913 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2488-1: getClientKeyringSize_#res#1 := getClientKeyringSize_~retValue_acc~37#1; [2024-11-09 23:13:03,914 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2533: #res#1 := ~retValue_acc~38#1; [2024-11-09 23:13:03,958 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L213-1: createEmail_#res#1 := createEmail_~retValue_acc~3#1; [2024-11-09 23:13:03,976 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L837: #res := ~retValue_acc~14; [2024-11-09 23:13:04,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2703-1: getClientKeyringPublicKey_#res#1 := getClientKeyringPublicKey_~retValue_acc~40#1; [2024-11-09 23:13:04,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2596-1: getClientKeyringUser_#res#1 := getClientKeyringUser_~retValue_acc~39#1; [2024-11-09 23:13:04,225 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1210-1: is_queue_empty_#res#1 := is_queue_empty_~retValue_acc~20#1; [2024-11-09 23:13:04,226 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1219-1: get_queued_client_#res#1 := get_queued_client_~retValue_acc~21#1; [2024-11-09 23:13:04,226 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1228-1: get_queued_email_#res#1 := get_queued_email_~retValue_acc~22#1; [2024-11-09 23:13:04,226 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1313-1: valid_product_#res#1 := valid_product_~retValue_acc~25#1; [2024-11-09 23:13:04,255 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L874: #res := ~retValue_acc~15; [2024-11-09 23:13:04,354 INFO L? ?]: Removed 420 outVars from TransFormulas that were not future-live. [2024-11-09 23:13:04,355 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:13:04,380 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:13:04,380 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:13:04,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:13:04 BoogieIcfgContainer [2024-11-09 23:13:04,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:13:04,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:13:04,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:13:04,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:13:04,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:13:02" (1/3) ... [2024-11-09 23:13:04,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371e3dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:04, skipping insertion in model container [2024-11-09 23:13:04,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:13:02" (2/3) ... [2024-11-09 23:13:04,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371e3dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:13:04, skipping insertion in model container [2024-11-09 23:13:04,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:13:04" (3/3) ... [2024-11-09 23:13:04,391 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product16.cil.c [2024-11-09 23:13:04,405 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:13:04,406 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:13:04,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:13:04,484 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;@10bd3182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:13:04,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:13:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 248 states have (on average 1.5120967741935485) internal successors, (375), 252 states have internal predecessors, (375), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 23:13:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 23:13:04,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:04,517 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:04,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:04,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:04,523 INFO L85 PathProgramCache]: Analyzing trace with hash -459232303, now seen corresponding path program 1 times [2024-11-09 23:13:04,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:04,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064662501] [2024-11-09 23:13:04,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:04,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:13:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:13:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:13:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 23:13:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 23:13:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:13:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:13:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:13:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,312 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 23:13:05,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:05,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064662501] [2024-11-09 23:13:05,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064662501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:05,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890865283] [2024-11-09 23:13:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:05,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:05,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:05,317 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 23:13:05,319 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 23:13:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:05,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 23:13:05,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:05,634 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 23:13:05,635 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:05,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890865283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:05,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:05,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-09 23:13:05,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996165604] [2024-11-09 23:13:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:05,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:13:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:13:05,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:05,666 INFO L87 Difference]: Start difference. First operand has 311 states, 248 states have (on average 1.5120967741935485) internal successors, (375), 252 states have internal predecessors, (375), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:05,718 INFO L93 Difference]: Finished difference Result 457 states and 673 transitions. [2024-11-09 23:13:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:13:05,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 90 [2024-11-09 23:13:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:05,731 INFO L225 Difference]: With dead ends: 457 [2024-11-09 23:13:05,731 INFO L226 Difference]: Without dead ends: 303 [2024-11-09 23:13:05,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:05,739 INFO L432 NwaCegarLoop]: 460 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, 460 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 23:13:05,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-11-09 23:13:05,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2024-11-09 23:13:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 241 states have (on average 1.5062240663900415) internal successors, (363), 244 states have internal predecessors, (363), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 23:13:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 452 transitions. [2024-11-09 23:13:05,808 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 452 transitions. Word has length 90 [2024-11-09 23:13:05,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:05,810 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 452 transitions. [2024-11-09 23:13:05,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 452 transitions. [2024-11-09 23:13:05,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 23:13:05,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:05,815 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] [2024-11-09 23:13:05,830 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 23:13:06,016 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 23:13:06,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:06,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:06,018 INFO L85 PathProgramCache]: Analyzing trace with hash -463638613, now seen corresponding path program 1 times [2024-11-09 23:13:06,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:06,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981028104] [2024-11-09 23:13:06,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:06,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:13:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:13:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:13:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 23:13:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 23:13:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:13:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:13:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:13:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,479 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 23:13:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981028104] [2024-11-09 23:13:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981028104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:06,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376208698] [2024-11-09 23:13:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:06,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:06,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:06,484 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 23:13:06,486 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 23:13:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:06,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 23:13:06,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:06,797 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 23:13:06,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376208698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:06,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:13:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991630212] [2024-11-09 23:13:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:06,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:13:06,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:13:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:13:06,804 INFO L87 Difference]: Start difference. First operand 303 states and 452 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:06,835 INFO L93 Difference]: Finished difference Result 446 states and 653 transitions. [2024-11-09 23:13:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:13:06,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2024-11-09 23:13:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:06,839 INFO L225 Difference]: With dead ends: 446 [2024-11-09 23:13:06,839 INFO L226 Difference]: Without dead ends: 306 [2024-11-09 23:13:06,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 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 23:13:06,842 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 0 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 900 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 23:13:06,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 900 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:06,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-09 23:13:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-09 23:13:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 244 states have (on average 1.5) internal successors, (366), 247 states have internal predecessors, (366), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 23:13:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 455 transitions. [2024-11-09 23:13:06,862 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 455 transitions. Word has length 92 [2024-11-09 23:13:06,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:06,863 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 455 transitions. [2024-11-09 23:13:06,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 455 transitions. [2024-11-09 23:13:06,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 23:13:06,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:06,871 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] [2024-11-09 23:13:06,893 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 23:13:07,073 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 23:13:07,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:07,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1173097151, now seen corresponding path program 1 times [2024-11-09 23:13:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102050792] [2024-11-09 23:13:07,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:07,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:13:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:13:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:13:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 23:13:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:13:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-09 23:13:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:13:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:13:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,366 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 23:13:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102050792] [2024-11-09 23:13:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102050792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342879062] [2024-11-09 23:13:07,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:07,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:07,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:07,372 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 23:13:07,374 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 23:13:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:07,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:13:07,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:07,667 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 23:13:07,667 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:07,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342879062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:07,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:07,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-09 23:13:07,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209236928] [2024-11-09 23:13:07,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:07,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:13:07,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:13:07,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-09 23:13:07,670 INFO L87 Difference]: Start difference. First operand 306 states and 455 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:07,697 INFO L93 Difference]: Finished difference Result 651 states and 978 transitions. [2024-11-09 23:13:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:13:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-09 23:13:07,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:07,703 INFO L225 Difference]: With dead ends: 651 [2024-11-09 23:13:07,704 INFO L226 Difference]: Without dead ends: 373 [2024-11-09 23:13:07,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 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 23:13:07,710 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 117 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 884 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 23:13:07,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 884 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:07,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-09 23:13:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2024-11-09 23:13:07,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 292 states have (on average 1.5) internal successors, (438), 295 states have internal predecessors, (438), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-09 23:13:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 549 transitions. [2024-11-09 23:13:07,748 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 549 transitions. Word has length 99 [2024-11-09 23:13:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:07,749 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 549 transitions. [2024-11-09 23:13:07,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 549 transitions. [2024-11-09 23:13:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 23:13:07,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:07,755 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] [2024-11-09 23:13:07,773 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 23:13:07,955 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 23:13:07,956 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:07,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:07,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1866185196, now seen corresponding path program 1 times [2024-11-09 23:13:07,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:07,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405285246] [2024-11-09 23:13:07,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 23:13:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 23:13:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 23:13:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 23:13:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:13:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 23:13:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:13:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:13:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,160 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 23:13:08,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:08,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405285246] [2024-11-09 23:13:08,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405285246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:08,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627289636] [2024-11-09 23:13:08,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:08,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:08,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:08,163 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 23:13:08,164 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 23:13:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 23:13:08,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:08,535 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 23:13:08,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:08,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627289636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:08,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:08,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-09 23:13:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887041332] [2024-11-09 23:13:08,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:08,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:13:08,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:13:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:13:08,539 INFO L87 Difference]: Start difference. First operand 365 states and 549 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:08,603 INFO L93 Difference]: Finished difference Result 721 states and 1088 transitions. [2024-11-09 23:13:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:13:08,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2024-11-09 23:13:08,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:08,608 INFO L225 Difference]: With dead ends: 721 [2024-11-09 23:13:08,608 INFO L226 Difference]: Without dead ends: 367 [2024-11-09 23:13:08,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 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 23:13:08,610 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 2 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1765 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 23:13:08,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1765 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:08,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-09 23:13:08,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2024-11-09 23:13:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 293 states have (on average 1.4982935153583619) internal successors, (439), 297 states have internal predecessors, (439), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2024-11-09 23:13:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 552 transitions. [2024-11-09 23:13:08,631 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 552 transitions. Word has length 100 [2024-11-09 23:13:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:08,631 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 552 transitions. [2024-11-09 23:13:08,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 552 transitions. [2024-11-09 23:13:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 23:13:08,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:08,634 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] [2024-11-09 23:13:08,653 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 23:13:08,834 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 23:13:08,835 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:08,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 372580420, now seen corresponding path program 1 times [2024-11-09 23:13:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715449890] [2024-11-09 23:13:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:08,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 23:13:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 23:13:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-09 23:13:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:13:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 23:13:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:13:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:13:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,088 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 23:13:09,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:09,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715449890] [2024-11-09 23:13:09,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715449890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:09,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816572212] [2024-11-09 23:13:09,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:09,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:09,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:09,091 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 23:13:09,092 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 23:13:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 23:13:09,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:09,410 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 23:13:09,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 23:13:09,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816572212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:09,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 23:13:09,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 23:13:09,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159178585] [2024-11-09 23:13:09,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:09,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:13:09,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:09,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:13:09,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:13:09,414 INFO L87 Difference]: Start difference. First operand 367 states and 552 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:09,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:09,473 INFO L93 Difference]: Finished difference Result 723 states and 1093 transitions. [2024-11-09 23:13:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:13:09,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2024-11-09 23:13:09,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:09,476 INFO L225 Difference]: With dead ends: 723 [2024-11-09 23:13:09,476 INFO L226 Difference]: Without dead ends: 369 [2024-11-09 23:13:09,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 115 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 23:13:09,478 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 2 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1751 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 23:13:09,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1751 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:13:09,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-09 23:13:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2024-11-09 23:13:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 294 states have (on average 1.4965986394557824) internal successors, (440), 299 states have internal predecessors, (440), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-11-09 23:13:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 558 transitions. [2024-11-09 23:13:09,498 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 558 transitions. Word has length 101 [2024-11-09 23:13:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:09,499 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 558 transitions. [2024-11-09 23:13:09,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 558 transitions. [2024-11-09 23:13:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 23:13:09,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:09,502 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] [2024-11-09 23:13:09,522 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 23:13:09,706 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 23:13:09,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:09,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1656684050, now seen corresponding path program 1 times [2024-11-09 23:13:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043862081] [2024-11-09 23:13:09,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:09,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 23:13:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 23:13:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 23:13:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-09 23:13:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:13:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:13:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:09,915 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 23:13:09,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:09,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043862081] [2024-11-09 23:13:09,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043862081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:09,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:09,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:13:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804696072] [2024-11-09 23:13:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:09,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:13:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:13:09,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:09,918 INFO L87 Difference]: Start difference. First operand 369 states and 558 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:11,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:11,791 INFO L93 Difference]: Finished difference Result 864 states and 1309 transitions. [2024-11-09 23:13:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:13:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2024-11-09 23:13:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:11,796 INFO L225 Difference]: With dead ends: 864 [2024-11-09 23:13:11,796 INFO L226 Difference]: Without dead ends: 518 [2024-11-09 23:13:11,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:13:11,798 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 922 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:11,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1188 Invalid, 2593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 23:13:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-09 23:13:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 369. [2024-11-09 23:13:11,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 294 states have (on average 1.4965986394557824) internal successors, (440), 299 states have internal predecessors, (440), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2024-11-09 23:13:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 557 transitions. [2024-11-09 23:13:11,834 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 557 transitions. Word has length 102 [2024-11-09 23:13:11,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:11,834 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 557 transitions. [2024-11-09 23:13:11,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:11,835 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 557 transitions. [2024-11-09 23:13:11,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 23:13:11,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:11,837 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] [2024-11-09 23:13:11,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:13:11,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:11,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:11,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1778506620, now seen corresponding path program 2 times [2024-11-09 23:13:11,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:11,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172744667] [2024-11-09 23:13:11,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:11,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:11,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-09 23:13:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-09 23:13:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 23:13:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 23:13:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:13:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:13:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:12,022 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 23:13:12,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:12,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172744667] [2024-11-09 23:13:12,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172744667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:12,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:12,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:13:12,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919753986] [2024-11-09 23:13:12,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:12,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:13:12,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:12,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:13:12,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:12,024 INFO L87 Difference]: Start difference. First operand 369 states and 557 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:13,893 INFO L93 Difference]: Finished difference Result 866 states and 1312 transitions. [2024-11-09 23:13:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:13:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 103 [2024-11-09 23:13:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:13,899 INFO L225 Difference]: With dead ends: 866 [2024-11-09 23:13:13,899 INFO L226 Difference]: Without dead ends: 520 [2024-11-09 23:13:13,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:13:13,901 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 918 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2335 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:13,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1188 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2335 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 23:13:13,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-09 23:13:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 371. [2024-11-09 23:13:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 295 states have (on average 1.494915254237288) internal successors, (441), 301 states have internal predecessors, (441), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (63), 55 states have call predecessors, (63), 55 states have call successors, (63) [2024-11-09 23:13:13,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 560 transitions. [2024-11-09 23:13:13,930 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 560 transitions. Word has length 103 [2024-11-09 23:13:13,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:13,930 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 560 transitions. [2024-11-09 23:13:13,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 23:13:13,930 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 560 transitions. [2024-11-09 23:13:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 23:13:13,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:13,932 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] [2024-11-09 23:13:13,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:13:13,933 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:13,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:13,933 INFO L85 PathProgramCache]: Analyzing trace with hash -282652405, now seen corresponding path program 1 times [2024-11-09 23:13:13,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:13,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697453453] [2024-11-09 23:13:13,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:13,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-09 23:13:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-09 23:13:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 23:13:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:13:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:13:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:14,141 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 23:13:14,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:14,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697453453] [2024-11-09 23:13:14,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697453453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:14,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:14,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:13:14,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889257244] [2024-11-09 23:13:14,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:14,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:13:14,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:14,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:13:14,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:13:14,144 INFO L87 Difference]: Start difference. First operand 371 states and 560 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:13:16,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:16,571 INFO L93 Difference]: Finished difference Result 864 states and 1307 transitions. [2024-11-09 23:13:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:13:16,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2024-11-09 23:13:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:16,575 INFO L225 Difference]: With dead ends: 864 [2024-11-09 23:13:16,575 INFO L226 Difference]: Without dead ends: 520 [2024-11-09 23:13:16,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:13:16,578 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 922 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 3858 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 3858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:16,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1645 Invalid, 4134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 3858 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 23:13:16,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-09 23:13:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 371. [2024-11-09 23:13:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 295 states have (on average 1.494915254237288) internal successors, (441), 301 states have internal predecessors, (441), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-11-09 23:13:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 559 transitions. [2024-11-09 23:13:16,614 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 559 transitions. Word has length 104 [2024-11-09 23:13:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:16,615 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 559 transitions. [2024-11-09 23:13:16,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:13:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 559 transitions. [2024-11-09 23:13:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 23:13:16,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:16,617 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] [2024-11-09 23:13:16,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:13:16,617 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:16,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1647600363, now seen corresponding path program 2 times [2024-11-09 23:13:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66963792] [2024-11-09 23:13:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 23:13:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 23:13:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-09 23:13:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:13:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:13:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:16,868 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 23:13:16,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:16,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66963792] [2024-11-09 23:13:16,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66963792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:16,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:16,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 23:13:16,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262670182] [2024-11-09 23:13:16,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:16,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 23:13:16,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:16,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 23:13:16,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 23:13:16,871 INFO L87 Difference]: Start difference. First operand 371 states and 559 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:13:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:19,027 INFO L93 Difference]: Finished difference Result 866 states and 1313 transitions. [2024-11-09 23:13:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 23:13:19,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 105 [2024-11-09 23:13:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:19,031 INFO L225 Difference]: With dead ends: 866 [2024-11-09 23:13:19,031 INFO L226 Difference]: Without dead ends: 522 [2024-11-09 23:13:19,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-09 23:13:19,033 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 918 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 3877 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:19,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1646 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3877 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 23:13:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-09 23:13:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 373. [2024-11-09 23:13:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 296 states have (on average 1.4932432432432432) internal successors, (442), 303 states have internal predecessors, (442), 56 states have call successors, (56), 16 states have call predecessors, (56), 20 states have return successors, (67), 55 states have call predecessors, (67), 55 states have call successors, (67) [2024-11-09 23:13:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 565 transitions. [2024-11-09 23:13:19,061 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 565 transitions. Word has length 105 [2024-11-09 23:13:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:19,062 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 565 transitions. [2024-11-09 23:13:19,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-09 23:13:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 565 transitions. [2024-11-09 23:13:19,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 23:13:19,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:19,064 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] [2024-11-09 23:13:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:13:19,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:19,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:19,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1893202280, now seen corresponding path program 1 times [2024-11-09 23:13:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593307569] [2024-11-09 23:13:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-09 23:13:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 23:13:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:13:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:13:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:13:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,205 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 23:13:19,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593307569] [2024-11-09 23:13:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593307569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 23:13:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754262224] [2024-11-09 23:13:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:19,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 23:13:19,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:13:19,208 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 23:13:19,210 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 23:13:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:19,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 23:13:19,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 23:13:19,547 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 23:13:19,548 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 23:13:19,637 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 23:13:19,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754262224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 23:13:19,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 23:13:19,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-09 23:13:19,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510045762] [2024-11-09 23:13:19,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 23:13:19,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 23:13:19,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 23:13:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:13:19,640 INFO L87 Difference]: Start difference. First operand 373 states and 565 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 23:13:21,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:21,247 INFO L93 Difference]: Finished difference Result 1065 states and 1671 transitions. [2024-11-09 23:13:21,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 23:13:21,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-11-09 23:13:21,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:21,256 INFO L225 Difference]: With dead ends: 1065 [2024-11-09 23:13:21,256 INFO L226 Difference]: Without dead ends: 925 [2024-11-09 23:13:21,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-09 23:13:21,261 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 1366 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:21,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 1508 Invalid, 2901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:13:21,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-09 23:13:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 752. [2024-11-09 23:13:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 611 states have (on average 1.5237315875613748) internal successors, (931), 618 states have internal predecessors, (931), 120 states have call successors, (120), 16 states have call predecessors, (120), 20 states have return successors, (141), 119 states have call predecessors, (141), 119 states have call successors, (141) [2024-11-09 23:13:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1192 transitions. [2024-11-09 23:13:21,307 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1192 transitions. Word has length 106 [2024-11-09 23:13:21,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:21,308 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1192 transitions. [2024-11-09 23:13:21,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-09 23:13:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1192 transitions. [2024-11-09 23:13:21,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-09 23:13:21,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:21,312 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:21,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 23:13:21,513 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 23:13:21,513 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:21,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1976586325, now seen corresponding path program 1 times [2024-11-09 23:13:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710954968] [2024-11-09 23:13:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:21,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 23:13:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:13:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:13:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-09 23:13:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:13:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:21,663 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 23:13:21,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:21,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710954968] [2024-11-09 23:13:21,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710954968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:21,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:21,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:21,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990200661] [2024-11-09 23:13:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:21,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:21,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:21,666 INFO L87 Difference]: Start difference. First operand 752 states and 1192 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:22,999 INFO L93 Difference]: Finished difference Result 1968 states and 3164 transitions. [2024-11-09 23:13:22,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:22,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-09 23:13:23,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:23,006 INFO L225 Difference]: With dead ends: 1968 [2024-11-09 23:13:23,007 INFO L226 Difference]: Without dead ends: 1286 [2024-11-09 23:13:23,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:23,010 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1031 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:23,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 905 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:13:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-09 23:13:23,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1129. [2024-11-09 23:13:23,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 924 states have (on average 1.5238095238095237) internal successors, (1408), 931 states have internal predecessors, (1408), 184 states have call successors, (184), 16 states have call predecessors, (184), 20 states have return successors, (215), 183 states have call predecessors, (215), 183 states have call successors, (215) [2024-11-09 23:13:23,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1807 transitions. [2024-11-09 23:13:23,059 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1807 transitions. Word has length 120 [2024-11-09 23:13:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:23,060 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1807 transitions. [2024-11-09 23:13:23,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1807 transitions. [2024-11-09 23:13:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 23:13:23,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:23,066 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:23,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:13:23,066 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:23,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash 51462872, now seen corresponding path program 1 times [2024-11-09 23:13:23,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:23,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691248960] [2024-11-09 23:13:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:23,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 23:13:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:13:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:13:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-09 23:13:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:13:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:23,189 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 23:13:23,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:23,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691248960] [2024-11-09 23:13:23,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691248960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:23,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:23,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538735106] [2024-11-09 23:13:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:23,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:23,190 INFO L87 Difference]: Start difference. First operand 1129 states and 1807 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:24,510 INFO L93 Difference]: Finished difference Result 2878 states and 4643 transitions. [2024-11-09 23:13:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:24,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2024-11-09 23:13:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:24,519 INFO L225 Difference]: With dead ends: 2878 [2024-11-09 23:13:24,520 INFO L226 Difference]: Without dead ends: 1878 [2024-11-09 23:13:24,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:24,524 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1028 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:24,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 878 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:13:24,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-09 23:13:24,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1721. [2024-11-09 23:13:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1421 states have (on average 1.522167487684729) internal successors, (2163), 1428 states have internal predecessors, (2163), 279 states have call successors, (279), 16 states have call predecessors, (279), 20 states have return successors, (310), 278 states have call predecessors, (310), 278 states have call successors, (310) [2024-11-09 23:13:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2752 transitions. [2024-11-09 23:13:24,599 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2752 transitions. Word has length 121 [2024-11-09 23:13:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:24,600 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2752 transitions. [2024-11-09 23:13:24,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2752 transitions. [2024-11-09 23:13:24,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 23:13:24,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:24,608 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:24,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:13:24,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:24,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1897428555, now seen corresponding path program 1 times [2024-11-09 23:13:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:24,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235749975] [2024-11-09 23:13:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:24,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-09 23:13:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:13:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 23:13:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-09 23:13:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:13:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:24,707 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 23:13:24,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:24,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235749975] [2024-11-09 23:13:24,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235749975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:24,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:24,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:24,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434549569] [2024-11-09 23:13:24,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:24,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:24,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:24,709 INFO L87 Difference]: Start difference. First operand 1721 states and 2752 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:25,942 INFO L93 Difference]: Finished difference Result 4237 states and 6859 transitions. [2024-11-09 23:13:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:25,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2024-11-09 23:13:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:25,957 INFO L225 Difference]: With dead ends: 4237 [2024-11-09 23:13:25,958 INFO L226 Difference]: Without dead ends: 2784 [2024-11-09 23:13:25,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:25,964 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1025 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:25,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 871 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:13:25,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2024-11-09 23:13:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2627. [2024-11-09 23:13:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2204 states have (on average 1.5204174228675136) internal successors, (3351), 2211 states have internal predecessors, (3351), 402 states have call successors, (402), 16 states have call predecessors, (402), 20 states have return successors, (449), 401 states have call predecessors, (449), 401 states have call successors, (449) [2024-11-09 23:13:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4202 transitions. [2024-11-09 23:13:26,077 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4202 transitions. Word has length 122 [2024-11-09 23:13:26,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:26,078 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 4202 transitions. [2024-11-09 23:13:26,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:26,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4202 transitions. [2024-11-09 23:13:26,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 23:13:26,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:26,089 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:26,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:13:26,090 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:26,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:26,090 INFO L85 PathProgramCache]: Analyzing trace with hash 687161304, now seen corresponding path program 1 times [2024-11-09 23:13:26,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:26,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111664113] [2024-11-09 23:13:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-09 23:13:26,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:13:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-09 23:13:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 23:13:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:13:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:26,204 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 23:13:26,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:26,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111664113] [2024-11-09 23:13:26,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111664113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:26,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:26,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:26,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315163796] [2024-11-09 23:13:26,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:26,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:26,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:26,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:26,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:26,206 INFO L87 Difference]: Start difference. First operand 2627 states and 4202 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:27,379 INFO L93 Difference]: Finished difference Result 6373 states and 10335 transitions. [2024-11-09 23:13:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:27,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2024-11-09 23:13:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:27,402 INFO L225 Difference]: With dead ends: 6373 [2024-11-09 23:13:27,403 INFO L226 Difference]: Without dead ends: 4244 [2024-11-09 23:13:27,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:27,411 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1022 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:27,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 871 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:13:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4244 states. [2024-11-09 23:13:27,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4244 to 4087. [2024-11-09 23:13:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4087 states, 3485 states have (on average 1.5176470588235293) internal successors, (5289), 3492 states have internal predecessors, (5289), 581 states have call successors, (581), 16 states have call predecessors, (581), 20 states have return successors, (654), 580 states have call predecessors, (654), 580 states have call successors, (654) [2024-11-09 23:13:27,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4087 states to 4087 states and 6524 transitions. [2024-11-09 23:13:27,572 INFO L78 Accepts]: Start accepts. Automaton has 4087 states and 6524 transitions. Word has length 123 [2024-11-09 23:13:27,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:27,572 INFO L471 AbstractCegarLoop]: Abstraction has 4087 states and 6524 transitions. [2024-11-09 23:13:27,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:27,573 INFO L276 IsEmpty]: Start isEmpty. Operand 4087 states and 6524 transitions. [2024-11-09 23:13:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 23:13:27,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:27,583 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:27,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:13:27,584 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:27,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash 420783989, now seen corresponding path program 1 times [2024-11-09 23:13:27,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:27,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046845039] [2024-11-09 23:13:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:27,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-09 23:13:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:13:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 23:13:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-09 23:13:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-09 23:13:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:27,717 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 23:13:27,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046845039] [2024-11-09 23:13:27,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046845039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:27,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:27,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:27,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952096157] [2024-11-09 23:13:27,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:27,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:27,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:27,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:27,720 INFO L87 Difference]: Start difference. First operand 4087 states and 6524 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:29,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:29,231 INFO L93 Difference]: Finished difference Result 9916 states and 16077 transitions. [2024-11-09 23:13:29,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:29,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 124 [2024-11-09 23:13:29,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:29,263 INFO L225 Difference]: With dead ends: 9916 [2024-11-09 23:13:29,263 INFO L226 Difference]: Without dead ends: 6681 [2024-11-09 23:13:29,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:29,274 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1019 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:29,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 897 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:13:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2024-11-09 23:13:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6524. [2024-11-09 23:13:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6524 states, 5546 states have (on average 1.505048683736026) internal successors, (8347), 5553 states have internal predecessors, (8347), 957 states have call successors, (957), 16 states have call predecessors, (957), 20 states have return successors, (1074), 956 states have call predecessors, (1074), 956 states have call successors, (1074) [2024-11-09 23:13:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6524 states to 6524 states and 10378 transitions. [2024-11-09 23:13:29,607 INFO L78 Accepts]: Start accepts. Automaton has 6524 states and 10378 transitions. Word has length 124 [2024-11-09 23:13:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:29,607 INFO L471 AbstractCegarLoop]: Abstraction has 6524 states and 10378 transitions. [2024-11-09 23:13:29,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6524 states and 10378 transitions. [2024-11-09 23:13:29,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 23:13:29,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:29,629 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:29,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:13:29,630 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:29,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1463698776, now seen corresponding path program 1 times [2024-11-09 23:13:29,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:29,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792221811] [2024-11-09 23:13:29,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:29,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-09 23:13:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:13:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-09 23:13:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-09 23:13:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-09 23:13:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:29,753 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 23:13:29,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:29,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792221811] [2024-11-09 23:13:29,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792221811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:29,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:29,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:29,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552811391] [2024-11-09 23:13:29,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:29,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:29,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:29,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:29,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:29,758 INFO L87 Difference]: Start difference. First operand 6524 states and 10378 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:31,218 INFO L93 Difference]: Finished difference Result 16339 states and 26384 transitions. [2024-11-09 23:13:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 125 [2024-11-09 23:13:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:31,279 INFO L225 Difference]: With dead ends: 16339 [2024-11-09 23:13:31,280 INFO L226 Difference]: Without dead ends: 11106 [2024-11-09 23:13:31,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:31,299 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1016 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:31,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 878 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:13:31,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2024-11-09 23:13:31,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 10949. [2024-11-09 23:13:31,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10949 states, 9365 states have (on average 1.4986652429257874) internal successors, (14035), 9372 states have internal predecessors, (14035), 1563 states have call successors, (1563), 16 states have call predecessors, (1563), 20 states have return successors, (1758), 1562 states have call predecessors, (1758), 1562 states have call successors, (1758) [2024-11-09 23:13:31,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10949 states to 10949 states and 17356 transitions. [2024-11-09 23:13:31,765 INFO L78 Accepts]: Start accepts. Automaton has 10949 states and 17356 transitions. Word has length 125 [2024-11-09 23:13:31,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:31,765 INFO L471 AbstractCegarLoop]: Abstraction has 10949 states and 17356 transitions. [2024-11-09 23:13:31,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:31,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10949 states and 17356 transitions. [2024-11-09 23:13:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 23:13:31,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:31,783 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:31,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:13:31,784 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:31,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:31,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2129832747, now seen corresponding path program 1 times [2024-11-09 23:13:31,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:31,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246258369] [2024-11-09 23:13:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 23:13:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-09 23:13:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 23:13:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-09 23:13:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-09 23:13:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:31,960 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 23:13:31,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246258369] [2024-11-09 23:13:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246258369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:31,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564969207] [2024-11-09 23:13:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:31,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:31,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:31,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:31,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:31,963 INFO L87 Difference]: Start difference. First operand 10949 states and 17356 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:33,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:33,446 INFO L93 Difference]: Finished difference Result 28578 states and 45985 transitions. [2024-11-09 23:13:33,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:33,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2024-11-09 23:13:33,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:33,522 INFO L225 Difference]: With dead ends: 28578 [2024-11-09 23:13:33,523 INFO L226 Difference]: Without dead ends: 19458 [2024-11-09 23:13:33,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:33,556 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 1013 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:33,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 914 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:13:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19458 states. [2024-11-09 23:13:34,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19458 to 19301. [2024-11-09 23:13:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19301 states, 16514 states have (on average 1.4881918372290177) internal successors, (24576), 16521 states have internal predecessors, (24576), 2766 states have call successors, (2766), 16 states have call predecessors, (2766), 20 states have return successors, (3105), 2765 states have call predecessors, (3105), 2765 states have call successors, (3105) [2024-11-09 23:13:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19301 states to 19301 states and 30447 transitions. [2024-11-09 23:13:34,234 INFO L78 Accepts]: Start accepts. Automaton has 19301 states and 30447 transitions. Word has length 126 [2024-11-09 23:13:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:34,235 INFO L471 AbstractCegarLoop]: Abstraction has 19301 states and 30447 transitions. [2024-11-09 23:13:34,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 19301 states and 30447 transitions. [2024-11-09 23:13:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 23:13:34,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:34,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:34,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:13:34,255 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:34,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:34,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1080910440, now seen corresponding path program 1 times [2024-11-09 23:13:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:34,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715379036] [2024-11-09 23:13:34,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 23:13:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 23:13:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 23:13:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-09 23:13:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 23:13:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:34,364 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 23:13:34,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715379036] [2024-11-09 23:13:34,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715379036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:34,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:34,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:34,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101331688] [2024-11-09 23:13:34,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:34,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:34,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:34,366 INFO L87 Difference]: Start difference. First operand 19301 states and 30447 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:36,111 INFO L93 Difference]: Finished difference Result 51526 states and 82566 transitions. [2024-11-09 23:13:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:36,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2024-11-09 23:13:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:36,279 INFO L225 Difference]: With dead ends: 51526 [2024-11-09 23:13:36,279 INFO L226 Difference]: Without dead ends: 34810 [2024-11-09 23:13:36,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:36,341 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1010 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:36,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 872 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 23:13:36,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34810 states. [2024-11-09 23:13:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34810 to 34653. [2024-11-09 23:13:37,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34653 states, 29827 states have (on average 1.4811077211922083) internal successors, (44177), 29834 states have internal predecessors, (44177), 4805 states have call successors, (4805), 16 states have call predecessors, (4805), 20 states have return successors, (5418), 4804 states have call predecessors, (5418), 4804 states have call successors, (5418) [2024-11-09 23:13:37,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34653 states to 34653 states and 54400 transitions. [2024-11-09 23:13:37,817 INFO L78 Accepts]: Start accepts. Automaton has 34653 states and 54400 transitions. Word has length 127 [2024-11-09 23:13:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:37,819 INFO L471 AbstractCegarLoop]: Abstraction has 34653 states and 54400 transitions. [2024-11-09 23:13:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 34653 states and 54400 transitions. [2024-11-09 23:13:37,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-09 23:13:37,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:37,843 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:37,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:13:37,844 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:37,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:37,844 INFO L85 PathProgramCache]: Analyzing trace with hash 469966357, now seen corresponding path program 1 times [2024-11-09 23:13:37,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:37,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815668492] [2024-11-09 23:13:37,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:37,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 23:13:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-09 23:13:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-09 23:13:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-09 23:13:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-09 23:13:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:37,947 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 23:13:37,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:37,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815668492] [2024-11-09 23:13:37,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815668492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:37,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:37,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:37,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793355446] [2024-11-09 23:13:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:37,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:37,950 INFO L87 Difference]: Start difference. First operand 34653 states and 54400 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:40,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:40,293 INFO L93 Difference]: Finished difference Result 95115 states and 151152 transitions. [2024-11-09 23:13:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:40,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2024-11-09 23:13:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:40,521 INFO L225 Difference]: With dead ends: 95115 [2024-11-09 23:13:40,521 INFO L226 Difference]: Without dead ends: 63965 [2024-11-09 23:13:40,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:40,602 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1007 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:40,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 908 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 23:13:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63965 states. [2024-11-09 23:13:42,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63965 to 63808. [2024-11-09 23:13:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63808 states, 55267 states have (on average 1.4732480503736407) internal successors, (81422), 55274 states have internal predecessors, (81422), 8520 states have call successors, (8520), 16 states have call predecessors, (8520), 20 states have return successors, (9665), 8519 states have call predecessors, (9665), 8519 states have call successors, (9665) [2024-11-09 23:13:43,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63808 states to 63808 states and 99607 transitions. [2024-11-09 23:13:43,046 INFO L78 Accepts]: Start accepts. Automaton has 63808 states and 99607 transitions. Word has length 128 [2024-11-09 23:13:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:43,046 INFO L471 AbstractCegarLoop]: Abstraction has 63808 states and 99607 transitions. [2024-11-09 23:13:43,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 63808 states and 99607 transitions. [2024-11-09 23:13:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 23:13:43,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:43,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:13:43,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:13:43,074 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:43,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1523947064, now seen corresponding path program 1 times [2024-11-09 23:13:43,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:43,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852403370] [2024-11-09 23:13:43,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:43,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-09 23:13:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-09 23:13:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-09 23:13:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 23:13:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-09 23:13:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:43,181 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 23:13:43,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:43,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852403370] [2024-11-09 23:13:43,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852403370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:43,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:43,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 23:13:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755078086] [2024-11-09 23:13:43,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:43,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 23:13:43,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 23:13:43,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 23:13:43,185 INFO L87 Difference]: Start difference. First operand 63808 states and 99607 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:46,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:46,436 INFO L93 Difference]: Finished difference Result 119979 states and 190432 transitions. [2024-11-09 23:13:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:13:46,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 129 [2024-11-09 23:13:46,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:46,905 INFO L225 Difference]: With dead ends: 119979 [2024-11-09 23:13:46,905 INFO L226 Difference]: Without dead ends: 119839 [2024-11-09 23:13:46,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-09 23:13:46,965 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1001 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:46,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 874 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 23:13:47,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119839 states. [2024-11-09 23:13:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119839 to 119682. [2024-11-09 23:13:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119682 states, 104342 states have (on average 1.4644821835885837) internal successors, (152807), 104349 states have internal predecessors, (152807), 15319 states have call successors, (15319), 16 states have call predecessors, (15319), 20 states have return successors, (17510), 15318 states have call predecessors, (17510), 15318 states have call successors, (17510) [2024-11-09 23:13:51,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119682 states to 119682 states and 185636 transitions. [2024-11-09 23:13:51,259 INFO L78 Accepts]: Start accepts. Automaton has 119682 states and 185636 transitions. Word has length 129 [2024-11-09 23:13:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:13:51,260 INFO L471 AbstractCegarLoop]: Abstraction has 119682 states and 185636 transitions. [2024-11-09 23:13:51,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 119682 states and 185636 transitions. [2024-11-09 23:13:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:13:51,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:13:51,327 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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] [2024-11-09 23:13:51,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 23:13:51,328 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:13:51,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:13:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1627777699, now seen corresponding path program 2 times [2024-11-09 23:13:51,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:13:51,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620383164] [2024-11-09 23:13:51,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:13:51,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:13:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:13:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:13:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:13:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:13:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:13:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:13:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:13:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:13:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:13:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:13:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:13:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:13:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 23:13:51,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:13:51,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620383164] [2024-11-09 23:13:51,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620383164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:13:51,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:13:51,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 23:13:51,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090652574] [2024-11-09 23:13:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:13:51,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 23:13:51,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:13:51,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 23:13:51,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:13:51,511 INFO L87 Difference]: Start difference. First operand 119682 states and 185636 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:13:55,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:13:55,446 INFO L93 Difference]: Finished difference Result 233815 states and 366183 transitions. [2024-11-09 23:13:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 23:13:55,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 130 [2024-11-09 23:13:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:13:55,987 INFO L225 Difference]: With dead ends: 233815 [2024-11-09 23:13:55,987 INFO L226 Difference]: Without dead ends: 119839 [2024-11-09 23:13:56,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-09 23:13:56,251 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 1030 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:13:56,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1973 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 23:13:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119839 states. [2024-11-09 23:13:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119839 to 119682. [2024-11-09 23:13:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119682 states, 104342 states have (on average 1.454553295892354) internal successors, (151771), 104349 states have internal predecessors, (151771), 15319 states have call successors, (15319), 16 states have call predecessors, (15319), 20 states have return successors, (17510), 15318 states have call predecessors, (17510), 15318 states have call successors, (17510) [2024-11-09 23:14:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119682 states to 119682 states and 184600 transitions. [2024-11-09 23:14:00,365 INFO L78 Accepts]: Start accepts. Automaton has 119682 states and 184600 transitions. Word has length 130 [2024-11-09 23:14:00,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:14:00,365 INFO L471 AbstractCegarLoop]: Abstraction has 119682 states and 184600 transitions. [2024-11-09 23:14:00,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 23:14:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 119682 states and 184600 transitions. [2024-11-09 23:14:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:14:00,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:14:00,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:14:00,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 23:14:00,383 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:14:00,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:14:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1417956181, now seen corresponding path program 1 times [2024-11-09 23:14:00,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:14:00,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762458916] [2024-11-09 23:14:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:14:00,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:14:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 23:14:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-09 23:14:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 23:14:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 23:14:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 23:14:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 23:14:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-09 23:14:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-09 23:14:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 23:14:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-09 23:14:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-09 23:14:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:14:00,764 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 23:14:00,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:14:00,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762458916] [2024-11-09 23:14:00,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762458916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:14:00,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:14:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 23:14:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800425620] [2024-11-09 23:14:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:14:00,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 23:14:00,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:14:00,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 23:14:00,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-09 23:14:00,767 INFO L87 Difference]: Start difference. First operand 119682 states and 184600 transitions. Second operand has 16 states, 15 states have (on average 6.2) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-09 23:14:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:14:09,213 INFO L93 Difference]: Finished difference Result 238862 states and 380447 transitions. [2024-11-09 23:14:09,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 23:14:09,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.2) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 130 [2024-11-09 23:14:09,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:14:10,112 INFO L225 Difference]: With dead ends: 238862 [2024-11-09 23:14:10,112 INFO L226 Difference]: Without dead ends: 238728 [2024-11-09 23:14:10,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=715, Invalid=2825, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 23:14:10,205 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 3831 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 6038 mSolverCounterSat, 1156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3831 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 7194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1156 IncrementalHoareTripleChecker+Valid, 6038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 23:14:10,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3831 Valid, 2776 Invalid, 7194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1156 Valid, 6038 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 23:14:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238728 states.