./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product24.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 b453d764da4cb622a1911439b5a79bae9155e32b42a83c5d4472e5a8d62a8d39 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 00:42:26,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 00:42:26,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 00:42:26,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 00:42:26,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 00:42:26,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 00:42:26,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 00:42:26,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 00:42:26,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 00:42:26,906 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 00:42:26,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 00:42:26,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 00:42:26,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 00:42:26,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 00:42:26,909 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 00:42:26,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 00:42:26,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 00:42:26,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 00:42:26,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 00:42:26,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 00:42:26,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 00:42:26,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 00:42:26,913 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 00:42:26,913 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 00:42:26,913 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 00:42:26,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 00:42:26,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 00:42:26,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 00:42:26,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 00:42:26,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 00:42:26,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 00:42:26,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:42:26,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 00:42:26,915 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 00:42:26,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 00:42:26,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 00:42:26,917 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b453d764da4cb622a1911439b5a79bae9155e32b42a83c5d4472e5a8d62a8d39 [2024-10-24 00:42:27,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 00:42:27,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 00:42:27,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 00:42:27,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 00:42:27,119 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 00:42:27,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c [2024-10-24 00:42:28,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 00:42:28,595 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 00:42:28,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product24.cil.c [2024-10-24 00:42:28,611 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08c13246/7bf2931b00a743dd9d386f07a9abbe28/FLAGb42e77498 [2024-10-24 00:42:28,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b08c13246/7bf2931b00a743dd9d386f07a9abbe28 [2024-10-24 00:42:28,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 00:42:28,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 00:42:28,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 00:42:28,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 00:42:28,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 00:42:28,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:42:28" (1/1) ... [2024-10-24 00:42:28,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37256413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:28, skipping insertion in model container [2024-10-24 00:42:28,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:42:28" (1/1) ... [2024-10-24 00:42:28,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 00:42:29,005 WARN L248 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_spec0_product24.cil.c[25283,25296] [2024-10-24 00:42:29,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:42:29,130 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 00:42:29,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-10-24 00:42:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [460] [2024-10-24 00:42:29,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [689] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1036] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1332] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1341] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1707] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1803] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1822] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1857] [2024-10-24 00:42:29,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2922] [2024-10-24 00:42:29,186 WARN L248 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_spec0_product24.cil.c[25283,25296] [2024-10-24 00:42:29,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 00:42:29,263 INFO L204 MainTranslator]: Completed translation [2024-10-24 00:42:29,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29 WrapperNode [2024-10-24 00:42:29,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 00:42:29,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 00:42:29,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 00:42:29,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 00:42:29,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,325 INFO L138 Inliner]: procedures = 130, calls = 192, calls flagged for inlining = 64, calls inlined = 59, statements flattened = 1055 [2024-10-24 00:42:29,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 00:42:29,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 00:42:29,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 00:42:29,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 00:42:29,337 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,373 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]. [2024-10-24 00:42:29,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 00:42:29,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 00:42:29,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 00:42:29,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 00:42:29,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (1/1) ... [2024-10-24 00:42:29,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 00:42:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:29,446 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) [2024-10-24 00:42:29,447 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 [2024-10-24 00:42:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-24 00:42:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-24 00:42:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-24 00:42:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-24 00:42:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-24 00:42:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-24 00:42:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-24 00:42:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-24 00:42:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-24 00:42:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-24 00:42:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-24 00:42:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-24 00:42:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-24 00:42:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 00:42:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-24 00:42:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-24 00:42:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-24 00:42:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-24 00:42:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-24 00:42:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-24 00:42:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-24 00:42:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-24 00:42:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-24 00:42:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 00:42:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 00:42:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-24 00:42:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-24 00:42:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 00:42:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 00:42:29,644 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 00:42:29,646 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 00:42:30,365 INFO L? ?]: Removed 457 outVars from TransFormulas that were not future-live. [2024-10-24 00:42:30,366 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 00:42:30,414 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 00:42:30,415 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 00:42:30,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:42:30 BoogieIcfgContainer [2024-10-24 00:42:30,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 00:42:30,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 00:42:30,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 00:42:30,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 00:42:30,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:42:28" (1/3) ... [2024-10-24 00:42:30,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706da02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:42:30, skipping insertion in model container [2024-10-24 00:42:30,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:42:29" (2/3) ... [2024-10-24 00:42:30,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706da02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:42:30, skipping insertion in model container [2024-10-24 00:42:30,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:42:30" (3/3) ... [2024-10-24 00:42:30,422 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product24.cil.c [2024-10-24 00:42:30,433 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 00:42:30,434 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 00:42:30,491 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 00:42:30,496 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;@3947fe1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 00:42:30,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 00:42:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 229 states have internal predecessors, (363), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-24 00:42:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 00:42:30,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:30,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:30,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:30,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:30,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1066125170, now seen corresponding path program 1 times [2024-10-24 00:42:30,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:30,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050296405] [2024-10-24 00:42:30,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:30,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-24 00:42:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 00:42:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:42:31,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:31,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050296405] [2024-10-24 00:42:31,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050296405] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:31,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390406477] [2024-10-24 00:42:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:31,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:31,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:31,169 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) [2024-10-24 00:42:31,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 00:42:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:31,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-24 00:42:31,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:31,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:31,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390406477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:31,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:31,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-24 00:42:31,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187295410] [2024-10-24 00:42:31,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:31,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 00:42:31,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 00:42:31,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:31,514 INFO L87 Difference]: Start difference. First operand has 292 states, 227 states have (on average 1.5991189427312775) internal successors, (363), 229 states have internal predecessors, (363), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:31,591 INFO L93 Difference]: Finished difference Result 435 states and 666 transitions. [2024-10-24 00:42:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 00:42:31,593 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2024-10-24 00:42:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:31,610 INFO L225 Difference]: With dead ends: 435 [2024-10-24 00:42:31,610 INFO L226 Difference]: Without dead ends: 289 [2024-10-24 00:42:31,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:31,618 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:31,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 434 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:31,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-24 00:42:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2024-10-24 00:42:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 225 states have (on average 1.5822222222222222) internal successors, (356), 226 states have internal predecessors, (356), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 00:42:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 447 transitions. [2024-10-24 00:42:31,672 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 447 transitions. Word has length 98 [2024-10-24 00:42:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:31,673 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 447 transitions. [2024-10-24 00:42:31,673 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 447 transitions. [2024-10-24 00:42:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 00:42:31,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:31,677 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:31,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 00:42:31,881 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 [2024-10-24 00:42:31,882 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:31,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1766991533, now seen corresponding path program 1 times [2024-10-24 00:42:31,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:31,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113486472] [2024-10-24 00:42:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:31,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 00:42:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 00:42:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:42:32,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:32,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113486472] [2024-10-24 00:42:32,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113486472] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:32,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141052668] [2024-10-24 00:42:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:32,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:32,132 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) [2024-10-24 00:42:32,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 00:42:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 00:42:32,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:32,377 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:32,378 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:32,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141052668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:32,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:32,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:42:32,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973139532] [2024-10-24 00:42:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:32,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:42:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:32,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:42:32,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:32,380 INFO L87 Difference]: Start difference. First operand 289 states and 447 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:32,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:32,453 INFO L93 Difference]: Finished difference Result 431 states and 653 transitions. [2024-10-24 00:42:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:42:32,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-10-24 00:42:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:32,456 INFO L225 Difference]: With dead ends: 431 [2024-10-24 00:42:32,456 INFO L226 Difference]: Without dead ends: 291 [2024-10-24 00:42:32,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:32,459 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 0 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:32,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 861 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:32,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-24 00:42:32,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-10-24 00:42:32,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 227 states have (on average 1.577092511013216) internal successors, (358), 228 states have internal predecessors, (358), 46 states have call successors, (46), 17 states have call predecessors, (46), 17 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 00:42:32,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2024-10-24 00:42:32,480 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 99 [2024-10-24 00:42:32,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:32,480 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2024-10-24 00:42:32,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:32,480 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2024-10-24 00:42:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-24 00:42:32,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:32,483 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 00:42:32,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 00:42:32,689 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 [2024-10-24 00:42:32,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:32,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:32,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1352094134, now seen corresponding path program 1 times [2024-10-24 00:42:32,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:32,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854084393] [2024-10-24 00:42:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:32,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-24 00:42:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:32,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:32,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854084393] [2024-10-24 00:42:32,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854084393] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:32,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137299603] [2024-10-24 00:42:32,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:32,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:32,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:32,893 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) [2024-10-24 00:42:32,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 00:42:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:33,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-24 00:42:33,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:33,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137299603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:33,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:33,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-24 00:42:33,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889380956] [2024-10-24 00:42:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:33,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 00:42:33,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 00:42:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:33,142 INFO L87 Difference]: Start difference. First operand 291 states and 449 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:33,191 INFO L93 Difference]: Finished difference Result 616 states and 964 transitions. [2024-10-24 00:42:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 00:42:33,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-10-24 00:42:33,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:33,194 INFO L225 Difference]: With dead ends: 616 [2024-10-24 00:42:33,194 INFO L226 Difference]: Without dead ends: 347 [2024-10-24 00:42:33,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-24 00:42:33,196 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 109 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:33,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 836 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 00:42:33,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-24 00:42:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 342. [2024-10-24 00:42:33,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 267 states have (on average 1.591760299625468) internal successors, (425), 268 states have internal predecessors, (425), 57 states have call successors, (57), 17 states have call predecessors, (57), 17 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 00:42:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 538 transitions. [2024-10-24 00:42:33,215 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 538 transitions. Word has length 106 [2024-10-24 00:42:33,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:33,215 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 538 transitions. [2024-10-24 00:42:33,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:33,216 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 538 transitions. [2024-10-24 00:42:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-24 00:42:33,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:33,217 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 00:42:33,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 00:42:33,418 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 [2024-10-24 00:42:33,419 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:33,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1457005129, now seen corresponding path program 1 times [2024-10-24 00:42:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134869892] [2024-10-24 00:42:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:33,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 00:42:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 00:42:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 00:42:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 00:42:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:42:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:33,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:33,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134869892] [2024-10-24 00:42:33,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134869892] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:33,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504622467] [2024-10-24 00:42:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:33,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:33,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:33,618 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) [2024-10-24 00:42:33,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 00:42:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:33,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 00:42:33,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 00:42:33,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:33,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504622467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:33,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:33,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-24 00:42:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624582909] [2024-10-24 00:42:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:33,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:33,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:33,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:33,906 INFO L87 Difference]: Start difference. First operand 342 states and 538 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:33,993 INFO L93 Difference]: Finished difference Result 679 states and 1070 transitions. [2024-10-24 00:42:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:33,993 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2024-10-24 00:42:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:33,996 INFO L225 Difference]: With dead ends: 679 [2024-10-24 00:42:33,996 INFO L226 Difference]: Without dead ends: 344 [2024-10-24 00:42:33,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:33,998 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 2 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:33,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1681 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:33,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-24 00:42:34,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-10-24 00:42:34,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 268 states have (on average 1.5895522388059702) internal successors, (426), 270 states have internal predecessors, (426), 57 states have call successors, (57), 17 states have call predecessors, (57), 18 states have return successors, (58), 56 states have call predecessors, (58), 56 states have call successors, (58) [2024-10-24 00:42:34,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 541 transitions. [2024-10-24 00:42:34,033 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 541 transitions. Word has length 107 [2024-10-24 00:42:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:34,035 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 541 transitions. [2024-10-24 00:42:34,035 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 541 transitions. [2024-10-24 00:42:34,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-24 00:42:34,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:34,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:34,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:34,240 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 [2024-10-24 00:42:34,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:34,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1123160546, now seen corresponding path program 1 times [2024-10-24 00:42:34,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:34,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467537241] [2024-10-24 00:42:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:34,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 00:42:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-24 00:42:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 00:42:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:42:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 00:42:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:42:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,429 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:34,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:34,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467537241] [2024-10-24 00:42:34,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467537241] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:34,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101138212] [2024-10-24 00:42:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:34,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:34,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:34,432 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) [2024-10-24 00:42:34,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 00:42:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:34,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 00:42:34,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-24 00:42:34,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 00:42:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101138212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 00:42:34,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-24 00:42:34,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233634348] [2024-10-24 00:42:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:34,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 00:42:34,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 00:42:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:34,720 INFO L87 Difference]: Start difference. First operand 344 states and 541 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:34,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:34,805 INFO L93 Difference]: Finished difference Result 681 states and 1075 transitions. [2024-10-24 00:42:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 00:42:34,806 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2024-10-24 00:42:34,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:34,809 INFO L225 Difference]: With dead ends: 681 [2024-10-24 00:42:34,809 INFO L226 Difference]: Without dead ends: 346 [2024-10-24 00:42:34,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:34,811 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 2 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:34,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1667 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 00:42:34,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-24 00:42:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2024-10-24 00:42:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 269 states have (on average 1.587360594795539) internal successors, (427), 272 states have internal predecessors, (427), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-10-24 00:42:34,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 547 transitions. [2024-10-24 00:42:34,824 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 547 transitions. Word has length 108 [2024-10-24 00:42:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:34,824 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 547 transitions. [2024-10-24 00:42:34,824 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 547 transitions. [2024-10-24 00:42:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-24 00:42:34,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:34,826 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:34,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:35,026 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 [2024-10-24 00:42:35,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:35,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -950473715, now seen corresponding path program 1 times [2024-10-24 00:42:35,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:35,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187622518] [2024-10-24 00:42:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:35,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 00:42:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 00:42:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 00:42:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 00:42:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:42:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:35,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:35,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187622518] [2024-10-24 00:42:35,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187622518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:35,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:35,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437373149] [2024-10-24 00:42:35,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:35,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:35,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:35,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:35,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:35,206 INFO L87 Difference]: Start difference. First operand 346 states and 547 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:36,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:36,832 INFO L93 Difference]: Finished difference Result 844 states and 1347 transitions. [2024-10-24 00:42:36,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:36,833 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-10-24 00:42:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:36,835 INFO L225 Difference]: With dead ends: 844 [2024-10-24 00:42:36,836 INFO L226 Difference]: Without dead ends: 517 [2024-10-24 00:42:36,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:36,839 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 995 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:36,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1015 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:42:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-10-24 00:42:36,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 346. [2024-10-24 00:42:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 269 states have (on average 1.587360594795539) internal successors, (427), 272 states have internal predecessors, (427), 57 states have call successors, (57), 17 states have call predecessors, (57), 19 states have return successors, (62), 56 states have call predecessors, (62), 56 states have call successors, (62) [2024-10-24 00:42:36,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 546 transitions. [2024-10-24 00:42:36,869 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 546 transitions. Word has length 109 [2024-10-24 00:42:36,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:36,869 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 546 transitions. [2024-10-24 00:42:36,869 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:36,870 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 546 transitions. [2024-10-24 00:42:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-24 00:42:36,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:36,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:36,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 00:42:36,873 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:36,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash -94936170, now seen corresponding path program 2 times [2024-10-24 00:42:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743006347] [2024-10-24 00:42:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:36,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 00:42:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-24 00:42:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 00:42:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 00:42:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 00:42:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:37,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:37,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743006347] [2024-10-24 00:42:37,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743006347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:37,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:37,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:37,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865505846] [2024-10-24 00:42:37,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:37,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:37,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:37,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:37,056 INFO L87 Difference]: Start difference. First operand 346 states and 546 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:38,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:38,608 INFO L93 Difference]: Finished difference Result 846 states and 1350 transitions. [2024-10-24 00:42:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 00:42:38,608 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-10-24 00:42:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:38,612 INFO L225 Difference]: With dead ends: 846 [2024-10-24 00:42:38,613 INFO L226 Difference]: Without dead ends: 519 [2024-10-24 00:42:38,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 00:42:38,615 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1020 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:38,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 1015 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 00:42:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-24 00:42:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 348. [2024-10-24 00:42:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-10-24 00:42:38,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-24 00:42:38,641 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 110 [2024-10-24 00:42:38,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:38,641 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-24 00:42:38,642 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, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-24 00:42:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:42:38,643 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:38,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:38,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 00:42:38,644 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:38,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1497763060, now seen corresponding path program 1 times [2024-10-24 00:42:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:38,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700682295] [2024-10-24 00:42:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:42:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 00:42:38,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700682295] [2024-10-24 00:42:38,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700682295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:38,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:38,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 00:42:38,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521984593] [2024-10-24 00:42:38,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:38,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 00:42:38,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:38,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 00:42:38,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 00:42:38,789 INFO L87 Difference]: Start difference. First operand 348 states and 549 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:40,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:40,340 INFO L93 Difference]: Finished difference Result 846 states and 1349 transitions. [2024-10-24 00:42:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 00:42:40,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-10-24 00:42:40,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:40,346 INFO L225 Difference]: With dead ends: 846 [2024-10-24 00:42:40,346 INFO L226 Difference]: Without dead ends: 519 [2024-10-24 00:42:40,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-24 00:42:40,349 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 996 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 2769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:40,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1012 Invalid, 2769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 00:42:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-24 00:42:40,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 348. [2024-10-24 00:42:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (64), 56 states have call predecessors, (64), 56 states have call successors, (64) [2024-10-24 00:42:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 549 transitions. [2024-10-24 00:42:40,404 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 549 transitions. Word has length 111 [2024-10-24 00:42:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:40,405 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 549 transitions. [2024-10-24 00:42:40,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 00:42:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 549 transitions. [2024-10-24 00:42:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-24 00:42:40,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:40,406 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:40,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 00:42:40,407 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:40,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:40,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1257523314, now seen corresponding path program 1 times [2024-10-24 00:42:40,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:40,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994941133] [2024-10-24 00:42:40,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:40,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-24 00:42:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-24 00:42:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:42:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:40,604 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:40,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:40,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994941133] [2024-10-24 00:42:40,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994941133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:40,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:40,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:40,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975526660] [2024-10-24 00:42:40,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:40,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:40,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:40,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:40,606 INFO L87 Difference]: Start difference. First operand 348 states and 549 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:42,450 INFO L93 Difference]: Finished difference Result 844 states and 1344 transitions. [2024-10-24 00:42:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:42,451 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 111 [2024-10-24 00:42:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:42,453 INFO L225 Difference]: With dead ends: 844 [2024-10-24 00:42:42,453 INFO L226 Difference]: Without dead ends: 519 [2024-10-24 00:42:42,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:42:42,455 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1023 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 3849 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 4175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 3849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:42,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 1406 Invalid, 4175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 3849 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 00:42:42,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-24 00:42:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 348. [2024-10-24 00:42:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 270 states have (on average 1.5851851851851853) internal successors, (428), 274 states have internal predecessors, (428), 57 states have call successors, (57), 17 states have call predecessors, (57), 20 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2024-10-24 00:42:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 548 transitions. [2024-10-24 00:42:42,476 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 548 transitions. Word has length 111 [2024-10-24 00:42:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:42,477 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 548 transitions. [2024-10-24 00:42:42,477 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 548 transitions. [2024-10-24 00:42:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-24 00:42:42,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:42,479 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:42,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 00:42:42,479 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:42,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:42,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1303733373, now seen corresponding path program 2 times [2024-10-24 00:42:42,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:42,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798223974] [2024-10-24 00:42:42,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:42,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 00:42:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:42:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:42:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 00:42:42,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:42,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798223974] [2024-10-24 00:42:42,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798223974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:42,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:42,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 00:42:42,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061248019] [2024-10-24 00:42:42,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:42,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 00:42:42,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:42,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 00:42:42,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-24 00:42:42,678 INFO L87 Difference]: Start difference. First operand 348 states and 548 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:44,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:44,369 INFO L93 Difference]: Finished difference Result 846 states and 1350 transitions. [2024-10-24 00:42:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 00:42:44,369 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 112 [2024-10-24 00:42:44,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:44,372 INFO L225 Difference]: With dead ends: 846 [2024-10-24 00:42:44,372 INFO L226 Difference]: Without dead ends: 521 [2024-10-24 00:42:44,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-24 00:42:44,374 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 994 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4079 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 4079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:44,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1408 Invalid, 4390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 4079 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 00:42:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-10-24 00:42:44,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 350. [2024-10-24 00:42:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 271 states have (on average 1.5830258302583027) internal successors, (429), 276 states have internal predecessors, (429), 57 states have call successors, (57), 17 states have call predecessors, (57), 21 states have return successors, (68), 56 states have call predecessors, (68), 56 states have call successors, (68) [2024-10-24 00:42:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 554 transitions. [2024-10-24 00:42:44,395 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 554 transitions. Word has length 112 [2024-10-24 00:42:44,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:44,395 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 554 transitions. [2024-10-24 00:42:44,395 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, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 00:42:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 554 transitions. [2024-10-24 00:42:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 00:42:44,397 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:44,397 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:44,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 00:42:44,397 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:44,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:44,398 INFO L85 PathProgramCache]: Analyzing trace with hash 419048855, now seen corresponding path program 1 times [2024-10-24 00:42:44,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:44,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157620201] [2024-10-24 00:42:44,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:44,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 00:42:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:42:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:42:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,573 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-24 00:42:44,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157620201] [2024-10-24 00:42:44,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157620201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:42:44,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159195059] [2024-10-24 00:42:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:42:44,577 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) [2024-10-24 00:42:44,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 00:42:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:44,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 00:42:44,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:42:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:44,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:42:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159195059] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:42:44,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:42:44,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-24 00:42:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711882001] [2024-10-24 00:42:44,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:42:44,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 00:42:44,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:44,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 00:42:44,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-10-24 00:42:44,926 INFO L87 Difference]: Start difference. First operand 350 states and 554 transitions. Second operand has 15 states, 14 states have (on average 8.0) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 00:42:46,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:46,889 INFO L93 Difference]: Finished difference Result 1195 states and 1996 transitions. [2024-10-24 00:42:46,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 00:42:46,890 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.0) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 113 [2024-10-24 00:42:46,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:46,894 INFO L225 Difference]: With dead ends: 1195 [2024-10-24 00:42:46,894 INFO L226 Difference]: Without dead ends: 871 [2024-10-24 00:42:46,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-10-24 00:42:46,896 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 2229 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 4002 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 4002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:46,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2246 Valid, 1573 Invalid, 4645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 4002 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 00:42:46,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2024-10-24 00:42:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 685. [2024-10-24 00:42:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 542 states have (on average 1.6273062730627306) internal successors, (882), 547 states have internal predecessors, (882), 121 states have call successors, (121), 17 states have call predecessors, (121), 21 states have return successors, (142), 120 states have call predecessors, (142), 120 states have call successors, (142) [2024-10-24 00:42:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1145 transitions. [2024-10-24 00:42:46,924 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1145 transitions. Word has length 113 [2024-10-24 00:42:46,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:46,924 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 1145 transitions. [2024-10-24 00:42:46,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.0) internal successors, (112), 11 states have internal predecessors, (112), 4 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 00:42:46,924 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1145 transitions. [2024-10-24 00:42:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 00:42:46,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:46,927 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:46,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 00:42:47,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:42:47,128 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:47,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1932855846, now seen corresponding path program 1 times [2024-10-24 00:42:47,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:47,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196058990] [2024-10-24 00:42:47,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:47,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-24 00:42:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 00:42:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-24 00:42:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:42:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:47,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:47,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196058990] [2024-10-24 00:42:47,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196058990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:47,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:47,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028485931] [2024-10-24 00:42:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:47,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:47,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:47,208 INFO L87 Difference]: Start difference. First operand 685 states and 1145 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:48,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:48,203 INFO L93 Difference]: Finished difference Result 1790 states and 3055 transitions. [2024-10-24 00:42:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:48,203 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-10-24 00:42:48,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:48,208 INFO L225 Difference]: With dead ends: 1790 [2024-10-24 00:42:48,209 INFO L226 Difference]: Without dead ends: 1173 [2024-10-24 00:42:48,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:48,211 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1094 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:48,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 776 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-10-24 00:42:48,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 997. [2024-10-24 00:42:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 790 states have (on average 1.6379746835443039) internal successors, (1294), 795 states have internal predecessors, (1294), 185 states have call successors, (185), 17 states have call predecessors, (185), 21 states have return successors, (216), 184 states have call predecessors, (216), 184 states have call successors, (216) [2024-10-24 00:42:48,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1695 transitions. [2024-10-24 00:42:48,248 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1695 transitions. Word has length 117 [2024-10-24 00:42:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:48,248 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1695 transitions. [2024-10-24 00:42:48,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1695 transitions. [2024-10-24 00:42:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-24 00:42:48,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:48,252 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:48,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 00:42:48,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:48,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1854012316, now seen corresponding path program 1 times [2024-10-24 00:42:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:48,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090946216] [2024-10-24 00:42:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:48,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 00:42:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-24 00:42:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 00:42:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:42:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:48,332 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:48,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:48,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090946216] [2024-10-24 00:42:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090946216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:48,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:48,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:48,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558114127] [2024-10-24 00:42:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:48,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:48,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:48,335 INFO L87 Difference]: Start difference. First operand 997 states and 1695 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:49,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:49,311 INFO L93 Difference]: Finished difference Result 2559 states and 4403 transitions. [2024-10-24 00:42:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:49,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-24 00:42:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:49,320 INFO L225 Difference]: With dead ends: 2559 [2024-10-24 00:42:49,320 INFO L226 Difference]: Without dead ends: 1680 [2024-10-24 00:42:49,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:49,324 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1106 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:49,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 746 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 00:42:49,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2024-10-24 00:42:49,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1504. [2024-10-24 00:42:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1202 states have (on average 1.642262895174709) internal successors, (1974), 1207 states have internal predecessors, (1974), 280 states have call successors, (280), 17 states have call predecessors, (280), 21 states have return successors, (311), 279 states have call predecessors, (311), 279 states have call successors, (311) [2024-10-24 00:42:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2565 transitions. [2024-10-24 00:42:49,381 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2565 transitions. Word has length 118 [2024-10-24 00:42:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:49,381 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 2565 transitions. [2024-10-24 00:42:49,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2565 transitions. [2024-10-24 00:42:49,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-24 00:42:49,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:49,387 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:49,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 00:42:49,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:49,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash -649150028, now seen corresponding path program 1 times [2024-10-24 00:42:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:49,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385481215] [2024-10-24 00:42:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 00:42:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-24 00:42:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:42:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:42:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 00:42:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:42:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:49,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:49,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385481215] [2024-10-24 00:42:49,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385481215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:49,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:49,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:49,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778984499] [2024-10-24 00:42:49,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:49,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:49,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:49,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:49,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:49,499 INFO L87 Difference]: Start difference. First operand 1504 states and 2565 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:50,545 INFO L93 Difference]: Finished difference Result 3705 states and 6428 transitions. [2024-10-24 00:42:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:50,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-10-24 00:42:50,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:50,557 INFO L225 Difference]: With dead ends: 3705 [2024-10-24 00:42:50,558 INFO L226 Difference]: Without dead ends: 2447 [2024-10-24 00:42:50,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:50,562 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1100 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:50,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 738 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-10-24 00:42:50,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2271. [2024-10-24 00:42:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2271 states, 1846 states have (on average 1.6462621885157096) internal successors, (3039), 1851 states have internal predecessors, (3039), 403 states have call successors, (403), 17 states have call predecessors, (403), 21 states have return successors, (450), 402 states have call predecessors, (450), 402 states have call successors, (450) [2024-10-24 00:42:50,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2271 states to 2271 states and 3892 transitions. [2024-10-24 00:42:50,692 INFO L78 Accepts]: Start accepts. Automaton has 2271 states and 3892 transitions. Word has length 119 [2024-10-24 00:42:50,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:50,693 INFO L471 AbstractCegarLoop]: Abstraction has 2271 states and 3892 transitions. [2024-10-24 00:42:50,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:50,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2271 states and 3892 transitions. [2024-10-24 00:42:50,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-24 00:42:50,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:50,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:50,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 00:42:50,701 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:50,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:50,702 INFO L85 PathProgramCache]: Analyzing trace with hash -631677827, now seen corresponding path program 1 times [2024-10-24 00:42:50,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:50,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442086904] [2024-10-24 00:42:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:50,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 00:42:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:42:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 00:42:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:42:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:42:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:42:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:42:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:50,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:50,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442086904] [2024-10-24 00:42:50,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442086904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:50,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:50,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:50,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269708471] [2024-10-24 00:42:50,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:50,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:50,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:50,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:50,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:50,804 INFO L87 Difference]: Start difference. First operand 2271 states and 3892 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:51,910 INFO L93 Difference]: Finished difference Result 5487 states and 9586 transitions. [2024-10-24 00:42:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:51,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-10-24 00:42:51,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:51,925 INFO L225 Difference]: With dead ends: 5487 [2024-10-24 00:42:51,925 INFO L226 Difference]: Without dead ends: 3671 [2024-10-24 00:42:51,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:51,931 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1108 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:51,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 735 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:51,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2024-10-24 00:42:52,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3495. [2024-10-24 00:42:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 2891 states have (on average 1.6489104116222761) internal successors, (4767), 2896 states have internal predecessors, (4767), 582 states have call successors, (582), 17 states have call predecessors, (582), 21 states have return successors, (655), 581 states have call predecessors, (655), 581 states have call successors, (655) [2024-10-24 00:42:52,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 6004 transitions. [2024-10-24 00:42:52,044 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 6004 transitions. Word has length 120 [2024-10-24 00:42:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:52,044 INFO L471 AbstractCegarLoop]: Abstraction has 3495 states and 6004 transitions. [2024-10-24 00:42:52,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 6004 transitions. [2024-10-24 00:42:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-24 00:42:52,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:52,054 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:52,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 00:42:52,054 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:52,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1281470960, now seen corresponding path program 1 times [2024-10-24 00:42:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:52,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521734670] [2024-10-24 00:42:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:52,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 00:42:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:42:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 00:42:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:42:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:42:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 00:42:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:42:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:52,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:52,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521734670] [2024-10-24 00:42:52,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521734670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:52,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:52,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:52,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491031340] [2024-10-24 00:42:52,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:52,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:52,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:52,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:52,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:52,144 INFO L87 Difference]: Start difference. First operand 3495 states and 6004 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:53,276 INFO L93 Difference]: Finished difference Result 8466 states and 14826 transitions. [2024-10-24 00:42:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:53,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-10-24 00:42:53,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:53,302 INFO L225 Difference]: With dead ends: 8466 [2024-10-24 00:42:53,302 INFO L226 Difference]: Without dead ends: 5729 [2024-10-24 00:42:53,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:53,312 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1090 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:53,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 766 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:53,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2024-10-24 00:42:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 5553. [2024-10-24 00:42:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5553 states, 4573 states have (on average 1.6378744806472776) internal successors, (7490), 4578 states have internal predecessors, (7490), 958 states have call successors, (958), 17 states have call predecessors, (958), 21 states have return successors, (1075), 957 states have call predecessors, (1075), 957 states have call successors, (1075) [2024-10-24 00:42:53,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5553 states to 5553 states and 9523 transitions. [2024-10-24 00:42:53,519 INFO L78 Accepts]: Start accepts. Automaton has 5553 states and 9523 transitions. Word has length 121 [2024-10-24 00:42:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:53,519 INFO L471 AbstractCegarLoop]: Abstraction has 5553 states and 9523 transitions. [2024-10-24 00:42:53,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:53,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5553 states and 9523 transitions. [2024-10-24 00:42:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-24 00:42:53,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:53,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:53,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 00:42:53,533 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:53,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash 503783489, now seen corresponding path program 1 times [2024-10-24 00:42:53,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:53,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992915606] [2024-10-24 00:42:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-24 00:42:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:42:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 00:42:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:42:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:42:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 00:42:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 00:42:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992915606] [2024-10-24 00:42:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992915606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:53,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:53,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:53,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95658749] [2024-10-24 00:42:53,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:53,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:53,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:53,623 INFO L87 Difference]: Start difference. First operand 5553 states and 9523 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:54,806 INFO L93 Difference]: Finished difference Result 13827 states and 24183 transitions. [2024-10-24 00:42:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:54,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-10-24 00:42:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:54,856 INFO L225 Difference]: With dead ends: 13827 [2024-10-24 00:42:54,856 INFO L226 Difference]: Without dead ends: 9418 [2024-10-24 00:42:54,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:54,869 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1083 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:54,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 744 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:54,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9418 states. [2024-10-24 00:42:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9418 to 9242. [2024-10-24 00:42:55,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9242 states, 7656 states have (on average 1.6353187042842214) internal successors, (12520), 7661 states have internal predecessors, (12520), 1564 states have call successors, (1564), 17 states have call predecessors, (1564), 21 states have return successors, (1759), 1563 states have call predecessors, (1759), 1563 states have call successors, (1759) [2024-10-24 00:42:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9242 states to 9242 states and 15843 transitions. [2024-10-24 00:42:55,266 INFO L78 Accepts]: Start accepts. Automaton has 9242 states and 15843 transitions. Word has length 122 [2024-10-24 00:42:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:55,266 INFO L471 AbstractCegarLoop]: Abstraction has 9242 states and 15843 transitions. [2024-10-24 00:42:55,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 9242 states and 15843 transitions. [2024-10-24 00:42:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-24 00:42:55,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:55,314 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:55,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 00:42:55,314 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:55,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:55,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1017406498, now seen corresponding path program 1 times [2024-10-24 00:42:55,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:55,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778406159] [2024-10-24 00:42:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:55,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 00:42:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 00:42:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 00:42:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 00:42:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 00:42:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 00:42:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 00:42:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:55,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:55,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778406159] [2024-10-24 00:42:55,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778406159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:55,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:55,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:55,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103982019] [2024-10-24 00:42:55,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:55,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:55,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:55,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:55,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:55,415 INFO L87 Difference]: Start difference. First operand 9242 states and 15843 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:56,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:56,685 INFO L93 Difference]: Finished difference Result 24019 states and 41947 transitions. [2024-10-24 00:42:56,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:56,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-10-24 00:42:56,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:56,744 INFO L225 Difference]: With dead ends: 24019 [2024-10-24 00:42:56,744 INFO L226 Difference]: Without dead ends: 16378 [2024-10-24 00:42:56,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:56,770 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 1098 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:56,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 764 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16378 states. [2024-10-24 00:42:57,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16378 to 16202. [2024-10-24 00:42:57,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16202 states, 13413 states have (on average 1.62625810780586) internal successors, (21813), 13418 states have internal predecessors, (21813), 2767 states have call successors, (2767), 17 states have call predecessors, (2767), 21 states have return successors, (3106), 2766 states have call predecessors, (3106), 2766 states have call successors, (3106) [2024-10-24 00:42:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16202 states to 16202 states and 27686 transitions. [2024-10-24 00:42:57,418 INFO L78 Accepts]: Start accepts. Automaton has 16202 states and 27686 transitions. Word has length 123 [2024-10-24 00:42:57,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:42:57,419 INFO L471 AbstractCegarLoop]: Abstraction has 16202 states and 27686 transitions. [2024-10-24 00:42:57,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 16202 states and 27686 transitions. [2024-10-24 00:42:57,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-24 00:42:57,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:42:57,451 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:42:57,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 00:42:57,451 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:42:57,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:42:57,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1177990590, now seen corresponding path program 1 times [2024-10-24 00:42:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:42:57,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489484879] [2024-10-24 00:42:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:42:57,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:42:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:42:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:42:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:42:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:42:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:42:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:42:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 00:42:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 00:42:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 00:42:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-24 00:42:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 00:42:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 00:42:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 00:42:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:42:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:42:57,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:42:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489484879] [2024-10-24 00:42:57,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489484879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:42:57,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:42:57,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:42:57,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093182764] [2024-10-24 00:42:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:42:57,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:42:57,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:42:57,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:42:57,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:42:57,563 INFO L87 Difference]: Start difference. First operand 16202 states and 27686 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:42:59,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:42:59,268 INFO L93 Difference]: Finished difference Result 42994 states and 74959 transitions. [2024-10-24 00:42:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:42:59,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-10-24 00:42:59,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:42:59,364 INFO L225 Difference]: With dead ends: 42994 [2024-10-24 00:42:59,365 INFO L226 Difference]: Without dead ends: 29041 [2024-10-24 00:42:59,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:42:59,398 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1099 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 00:42:59,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 737 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 00:42:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29041 states. [2024-10-24 00:43:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29041 to 28865. [2024-10-24 00:43:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28865 states, 24037 states have (on average 1.6224570453883596) internal successors, (38999), 24042 states have internal predecessors, (38999), 4806 states have call successors, (4806), 17 states have call predecessors, (4806), 21 states have return successors, (5419), 4805 states have call predecessors, (5419), 4805 states have call successors, (5419) [2024-10-24 00:43:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28865 states to 28865 states and 49224 transitions. [2024-10-24 00:43:00,502 INFO L78 Accepts]: Start accepts. Automaton has 28865 states and 49224 transitions. Word has length 124 [2024-10-24 00:43:00,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:00,503 INFO L471 AbstractCegarLoop]: Abstraction has 28865 states and 49224 transitions. [2024-10-24 00:43:00,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:00,503 INFO L276 IsEmpty]: Start isEmpty. Operand 28865 states and 49224 transitions. [2024-10-24 00:43:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-24 00:43:00,533 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:00,533 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:00,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 00:43:00,533 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:00,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1883952704, now seen corresponding path program 1 times [2024-10-24 00:43:00,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:00,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896691786] [2024-10-24 00:43:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:00,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 00:43:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 00:43:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 00:43:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 00:43:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 00:43:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 00:43:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 00:43:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:43:00,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:00,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896691786] [2024-10-24 00:43:00,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896691786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:00,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:00,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:00,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143868235] [2024-10-24 00:43:00,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:00,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:00,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:00,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:00,642 INFO L87 Difference]: Start difference. First operand 28865 states and 49224 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:02,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:02,941 INFO L93 Difference]: Finished difference Result 78766 states and 136518 transitions. [2024-10-24 00:43:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:02,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-10-24 00:43:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:03,127 INFO L225 Difference]: With dead ends: 78766 [2024-10-24 00:43:03,128 INFO L226 Difference]: Without dead ends: 52929 [2024-10-24 00:43:03,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:03,195 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1118 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:03,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 748 Invalid, 1724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52929 states. [2024-10-24 00:43:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52929 to 52753. [2024-10-24 00:43:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52753 states, 44210 states have (on average 1.6174847319610948) internal successors, (71509), 44215 states have internal predecessors, (71509), 8521 states have call successors, (8521), 17 states have call predecessors, (8521), 21 states have return successors, (9666), 8520 states have call predecessors, (9666), 8520 states have call successors, (9666) [2024-10-24 00:43:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52753 states to 52753 states and 89696 transitions. [2024-10-24 00:43:05,217 INFO L78 Accepts]: Start accepts. Automaton has 52753 states and 89696 transitions. Word has length 125 [2024-10-24 00:43:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:05,218 INFO L471 AbstractCegarLoop]: Abstraction has 52753 states and 89696 transitions. [2024-10-24 00:43:05,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand 52753 states and 89696 transitions. [2024-10-24 00:43:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 00:43:05,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:05,248 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:05,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 00:43:05,248 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:05,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:05,249 INFO L85 PathProgramCache]: Analyzing trace with hash -336977822, now seen corresponding path program 1 times [2024-10-24 00:43:05,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:05,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317835665] [2024-10-24 00:43:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-24 00:43:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 00:43:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 00:43:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 00:43:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 00:43:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 00:43:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 00:43:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:43:05,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:05,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317835665] [2024-10-24 00:43:05,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317835665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:05,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:05,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 00:43:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464238564] [2024-10-24 00:43:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:05,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 00:43:05,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:05,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 00:43:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 00:43:05,347 INFO L87 Difference]: Start difference. First operand 52753 states and 89696 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:08,500 INFO L93 Difference]: Finished difference Result 98541 states and 171223 transitions. [2024-10-24 00:43:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 00:43:08,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-10-24 00:43:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:08,854 INFO L225 Difference]: With dead ends: 98541 [2024-10-24 00:43:08,854 INFO L226 Difference]: Without dead ends: 98401 [2024-10-24 00:43:08,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-24 00:43:08,898 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1062 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:08,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 753 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 00:43:08,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98401 states. [2024-10-24 00:43:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98401 to 98225. [2024-10-24 00:43:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98225 states, 82883 states have (on average 1.6111627233570214) internal successors, (133538), 82888 states have internal predecessors, (133538), 15320 states have call successors, (15320), 17 states have call predecessors, (15320), 21 states have return successors, (17511), 15319 states have call predecessors, (17511), 15319 states have call successors, (17511) [2024-10-24 00:43:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98225 states to 98225 states and 166369 transitions. [2024-10-24 00:43:12,572 INFO L78 Accepts]: Start accepts. Automaton has 98225 states and 166369 transitions. Word has length 126 [2024-10-24 00:43:12,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:12,573 INFO L471 AbstractCegarLoop]: Abstraction has 98225 states and 166369 transitions. [2024-10-24 00:43:12,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-24 00:43:12,573 INFO L276 IsEmpty]: Start isEmpty. Operand 98225 states and 166369 transitions. [2024-10-24 00:43:12,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 00:43:12,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:12,619 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:12,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 00:43:12,620 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:12,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1242490815, now seen corresponding path program 1 times [2024-10-24 00:43:12,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:12,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888046784] [2024-10-24 00:43:12,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:12,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 00:43:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 00:43:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 00:43:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-24 00:43:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 00:43:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-24 00:43:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888046784] [2024-10-24 00:43:12,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888046784] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 00:43:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265818019] [2024-10-24 00:43:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:12,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 00:43:12,792 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 00:43:12,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 00:43:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:13,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 00:43:13,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 00:43:13,170 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 00:43:13,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 00:43:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 00:43:13,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265818019] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 00:43:13,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 00:43:13,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2024-10-24 00:43:13,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315441070] [2024-10-24 00:43:13,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 00:43:13,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 00:43:13,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:13,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 00:43:13,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-24 00:43:13,368 INFO L87 Difference]: Start difference. First operand 98225 states and 166369 transitions. Second operand has 22 states, 21 states have (on average 9.857142857142858) internal successors, (207), 17 states have internal predecessors, (207), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-10-24 00:43:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:21,229 INFO L93 Difference]: Finished difference Result 196945 states and 344423 transitions. [2024-10-24 00:43:21,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-24 00:43:21,229 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.857142857142858) internal successors, (207), 17 states have internal predecessors, (207), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) Word has length 127 [2024-10-24 00:43:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:22,107 INFO L225 Difference]: With dead ends: 196945 [2024-10-24 00:43:22,107 INFO L226 Difference]: Without dead ends: 196810 [2024-10-24 00:43:22,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2024-10-24 00:43:22,219 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 3348 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 7820 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3360 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 8764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 7820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:22,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3360 Valid, 2311 Invalid, 8764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 7820 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-24 00:43:22,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196810 states. [2024-10-24 00:43:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196810 to 196455. [2024-10-24 00:43:28,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196455 states, 165773 states have (on average 1.6111550131806749) internal successors, (267086), 165780 states have internal predecessors, (267086), 30638 states have call successors, (30638), 36 states have call predecessors, (30638), 43 states have return successors, (37200), 30638 states have call predecessors, (37200), 30636 states have call successors, (37200) [2024-10-24 00:43:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196455 states to 196455 states and 334924 transitions. [2024-10-24 00:43:30,028 INFO L78 Accepts]: Start accepts. Automaton has 196455 states and 334924 transitions. Word has length 127 [2024-10-24 00:43:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 00:43:30,028 INFO L471 AbstractCegarLoop]: Abstraction has 196455 states and 334924 transitions. [2024-10-24 00:43:30,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.857142857142858) internal successors, (207), 17 states have internal predecessors, (207), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-10-24 00:43:30,028 INFO L276 IsEmpty]: Start isEmpty. Operand 196455 states and 334924 transitions. [2024-10-24 00:43:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 00:43:30,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 00:43:30,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 00:43:30,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 00:43:30,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 00:43:30,349 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 00:43:30,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 00:43:30,350 INFO L85 PathProgramCache]: Analyzing trace with hash -980819208, now seen corresponding path program 1 times [2024-10-24 00:43:30,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 00:43:30,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806675659] [2024-10-24 00:43:30,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 00:43:30,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 00:43:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 00:43:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 00:43:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 00:43:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-24 00:43:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-24 00:43:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 00:43:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-24 00:43:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-24 00:43:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 00:43:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 00:43:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-24 00:43:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-24 00:43:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 00:43:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 00:43:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 00:43:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 00:43:30,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 00:43:30,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806675659] [2024-10-24 00:43:30,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806675659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 00:43:30,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 00:43:30,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 00:43:30,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63265645] [2024-10-24 00:43:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 00:43:30,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 00:43:30,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 00:43:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 00:43:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 00:43:30,540 INFO L87 Difference]: Start difference. First operand 196455 states and 334924 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-24 00:43:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 00:43:37,557 INFO L93 Difference]: Finished difference Result 197533 states and 343157 transitions. [2024-10-24 00:43:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 00:43:37,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 135 [2024-10-24 00:43:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 00:43:38,341 INFO L225 Difference]: With dead ends: 197533 [2024-10-24 00:43:38,342 INFO L226 Difference]: Without dead ends: 197099 [2024-10-24 00:43:38,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2024-10-24 00:43:38,431 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 2136 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 3614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-24 00:43:38,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 1102 Invalid, 3614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-24 00:43:38,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197099 states.