./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product11.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 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:34:57,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:34:57,397 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:34:57,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:34:57,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:34:57,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:34:57,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:34:57,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:34:57,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:34:57,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:34:57,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:34:57,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:34:57,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:34:57,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:34:57,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:34:57,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:34:57,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:34:57,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:34:57,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:34:57,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:34:57,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:34:57,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:34:57,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:34:57,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:34:57,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:34:57,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:34:57,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:34:57,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:34:57,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:34:57,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:34:57,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:34:57,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:34:57,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:34:57,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:34:57,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:34:57,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:34:57,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:34:57,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:34:57,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:34:57,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:34:57,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:34:57,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:34:57,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a22b5b7c3f7f6e8ff7182918ba517a92e8c6204e4a486ab05fe09fb2404c376 [2024-11-11 20:34:57,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:34:57,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:34:57,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:34:57,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:34:57,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:34:57,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-11-11 20:34:59,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:34:59,555 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:34:59,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c [2024-11-11 20:34:59,585 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23f88fe8/bdd042dd40d34cc09817249d4ca9e4f8/FLAG5628b6be9 [2024-11-11 20:34:59,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c23f88fe8/bdd042dd40d34cc09817249d4ca9e4f8 [2024-11-11 20:34:59,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:34:59,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:34:59,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:34:59,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:34:59,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:34:59,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:34:59" (1/1) ... [2024-11-11 20:34:59,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757fa00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:59, skipping insertion in model container [2024-11-11 20:34:59,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:34:59" (1/1) ... [2024-11-11 20:34:59,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:35:00,203 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c[59717,59730] [2024-11-11 20:35:00,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:35:00,231 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:35:00,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-11 20:35:00,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [460] [2024-11-11 20:35:00,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [509] [2024-11-11 20:35:00,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [576] [2024-11-11 20:35:00,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [876] [2024-11-11 20:35:00,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [896] [2024-11-11 20:35:00,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1262] [2024-11-11 20:35:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1478] [2024-11-11 20:35:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1671] [2024-11-11 20:35:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2740] [2024-11-11 20:35:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2749] [2024-11-11 20:35:00,419 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product11.cil.c[59717,59730] [2024-11-11 20:35:00,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:35:00,462 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:35:00,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00 WrapperNode [2024-11-11 20:35:00,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:35:00,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:35:00,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:35:00,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:35:00,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,562 INFO L138 Inliner]: procedures = 121, calls = 162, calls flagged for inlining = 48, calls inlined = 43, statements flattened = 799 [2024-11-11 20:35:00,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:35:00,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:35:00,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:35:00,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:35:00,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,619 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-11 20:35:00,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:35:00,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:35:00,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:35:00,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:35:00,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (1/1) ... [2024-11-11 20:35:00,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:35:00,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:00,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 20:35:00,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 20:35:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:35:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:35:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:35:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:35:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:35:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:35:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-11 20:35:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-11 20:35:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-11 20:35:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-11 20:35:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:35:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-11 20:35:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-11 20:35:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:35:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:35:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:35:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-11 20:35:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:35:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-11 20:35:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-11 20:35:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:35:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:35:00,954 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:35:00,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:35:01,677 INFO L? ?]: Removed 304 outVars from TransFormulas that were not future-live. [2024-11-11 20:35:01,677 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:35:01,699 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:35:01,703 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:35:01,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:35:01 BoogieIcfgContainer [2024-11-11 20:35:01,703 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:35:01,705 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:35:01,706 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:35:01,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:35:01,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:34:59" (1/3) ... [2024-11-11 20:35:01,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a628cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:35:01, skipping insertion in model container [2024-11-11 20:35:01,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:00" (2/3) ... [2024-11-11 20:35:01,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a628cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:35:01, skipping insertion in model container [2024-11-11 20:35:01,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:35:01" (3/3) ... [2024-11-11 20:35:01,712 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product11.cil.c [2024-11-11 20:35:01,726 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:35:01,727 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:35:01,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:35:01,804 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;@56a00fc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:35:01,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:35:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 185 states have (on average 1.5297297297297296) internal successors, (283), 187 states have internal predecessors, (283), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-11 20:35:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 20:35:01,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:01,827 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:01,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:01,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash 911816680, now seen corresponding path program 1 times [2024-11-11 20:35:01,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:01,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347177599] [2024-11-11 20:35:01,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:01,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:35:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:35:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:35:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:35:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:02,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 20:35:02,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:02,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347177599] [2024-11-11 20:35:02,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347177599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:02,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452988000] [2024-11-11 20:35:02,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:02,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:02,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:02,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:02,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:35:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:35:02,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:35:02,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:02,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452988000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:02,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-11 20:35:02,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680034968] [2024-11-11 20:35:02,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:02,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:35:02,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:35:02,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:02,991 INFO L87 Difference]: Start difference. First operand has 235 states, 185 states have (on average 1.5297297297297296) internal successors, (283), 187 states have internal predecessors, (283), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:03,029 INFO L93 Difference]: Finished difference Result 316 states and 460 transitions. [2024-11-11 20:35:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:35:03,031 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-11-11 20:35:03,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:03,041 INFO L225 Difference]: With dead ends: 316 [2024-11-11 20:35:03,041 INFO L226 Difference]: Without dead ends: 228 [2024-11-11 20:35:03,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:03,047 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:03,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:03,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-11 20:35:03,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2024-11-11 20:35:03,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 179 states have (on average 1.5195530726256983) internal successors, (272), 180 states have internal predecessors, (272), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 20:35:03,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 341 transitions. [2024-11-11 20:35:03,102 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 341 transitions. Word has length 93 [2024-11-11 20:35:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:03,107 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 341 transitions. [2024-11-11 20:35:03,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 341 transitions. [2024-11-11 20:35:03,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 20:35:03,118 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:03,118 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:03,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:03,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-11 20:35:03,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:03,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:03,320 INFO L85 PathProgramCache]: Analyzing trace with hash -124046123, now seen corresponding path program 1 times [2024-11-11 20:35:03,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:03,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184351335] [2024-11-11 20:35:03,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:35:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:35:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:35:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:35:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 20:35:03,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:03,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184351335] [2024-11-11 20:35:03,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184351335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:03,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658392497] [2024-11-11 20:35:03,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:03,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:03,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:03,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:03,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:35:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:35:03,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:35:04,005 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:04,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658392497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:04,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:04,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:35:04,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839815912] [2024-11-11 20:35:04,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:04,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:35:04,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:04,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:35:04,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:04,008 INFO L87 Difference]: Start difference. First operand 228 states and 341 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:04,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:04,045 INFO L93 Difference]: Finished difference Result 306 states and 441 transitions. [2024-11-11 20:35:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:35:04,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2024-11-11 20:35:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:04,048 INFO L225 Difference]: With dead ends: 306 [2024-11-11 20:35:04,048 INFO L226 Difference]: Without dead ends: 231 [2024-11-11 20:35:04,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:04,051 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 1 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:04,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 676 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-11 20:35:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2024-11-11 20:35:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 181 states have (on average 1.5138121546961325) internal successors, (274), 182 states have internal predecessors, (274), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-11 20:35:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 343 transitions. [2024-11-11 20:35:04,072 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 343 transitions. Word has length 94 [2024-11-11 20:35:04,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:04,073 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 343 transitions. [2024-11-11 20:35:04,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 343 transitions. [2024-11-11 20:35:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-11 20:35:04,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:04,077 INFO L218 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, 1] [2024-11-11 20:35:04,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 20:35:04,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-11 20:35:04,278 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:04,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash -176780130, now seen corresponding path program 1 times [2024-11-11 20:35:04,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:04,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586453483] [2024-11-11 20:35:04,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:04,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:35:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:35:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:35:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:35:04,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:04,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586453483] [2024-11-11 20:35:04,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586453483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:04,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931642296] [2024-11-11 20:35:04,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:04,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:04,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:04,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:04,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:35:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:04,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:35:04,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:35:04,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:04,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931642296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:04,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:04,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:35:04,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762763554] [2024-11-11 20:35:04,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:04,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:35:04,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:35:04,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:04,897 INFO L87 Difference]: Start difference. First operand 230 states and 343 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:04,932 INFO L93 Difference]: Finished difference Result 490 states and 745 transitions. [2024-11-11 20:35:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:35:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2024-11-11 20:35:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:04,938 INFO L225 Difference]: With dead ends: 490 [2024-11-11 20:35:04,941 INFO L226 Difference]: Without dead ends: 287 [2024-11-11 20:35:04,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:04,945 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 107 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:04,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 654 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-11 20:35:04,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 279. [2024-11-11 20:35:04,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 220 states have internal predecessors, (336), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-11 20:35:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 427 transitions. [2024-11-11 20:35:04,966 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 427 transitions. Word has length 100 [2024-11-11 20:35:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:04,967 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 427 transitions. [2024-11-11 20:35:04,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 427 transitions. [2024-11-11 20:35:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 20:35:04,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:04,971 INFO L218 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, 1, 1] [2024-11-11 20:35:04,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 20:35:05,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:05,172 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:05,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:05,173 INFO L85 PathProgramCache]: Analyzing trace with hash -940882321, now seen corresponding path program 1 times [2024-11-11 20:35:05,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:05,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114045477] [2024-11-11 20:35:05,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:05,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:35:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:35:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:35:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:35:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:35:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114045477] [2024-11-11 20:35:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114045477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484488952] [2024-11-11 20:35:05,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:05,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:05,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:05,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:05,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:35:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:35:05,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:35:05,702 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:05,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484488952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:05,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:05,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:35:05,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392214964] [2024-11-11 20:35:05,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:05,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:05,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:05,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:05,706 INFO L87 Difference]: Start difference. First operand 279 states and 427 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:05,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:05,789 INFO L93 Difference]: Finished difference Result 549 states and 844 transitions. [2024-11-11 20:35:05,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:05,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-11-11 20:35:05,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:05,793 INFO L225 Difference]: With dead ends: 549 [2024-11-11 20:35:05,793 INFO L226 Difference]: Without dead ends: 281 [2024-11-11 20:35:05,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:05,796 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 2 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:05,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1321 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-11 20:35:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-11 20:35:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 220 states have (on average 1.5318181818181817) internal successors, (337), 222 states have internal predecessors, (337), 46 states have call successors, (46), 13 states have call predecessors, (46), 14 states have return successors, (47), 45 states have call predecessors, (47), 45 states have call successors, (47) [2024-11-11 20:35:05,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 430 transitions. [2024-11-11 20:35:05,821 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 430 transitions. Word has length 101 [2024-11-11 20:35:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:05,823 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 430 transitions. [2024-11-11 20:35:05,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 430 transitions. [2024-11-11 20:35:05,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:35:05,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:05,825 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:35:05,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 20:35:06,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:06,026 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:06,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1655833212, now seen corresponding path program 1 times [2024-11-11 20:35:06,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:06,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330180293] [2024-11-11 20:35:06,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:35:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:35:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,277 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:35:06,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:06,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330180293] [2024-11-11 20:35:06,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330180293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:06,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601020301] [2024-11-11 20:35:06,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:06,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:06,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:06,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:06,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:35:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:06,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:35:06,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:35:06,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601020301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-11 20:35:06,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762702472] [2024-11-11 20:35:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:06,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:06,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:35:06,591 INFO L87 Difference]: Start difference. First operand 281 states and 430 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:06,653 INFO L93 Difference]: Finished difference Result 551 states and 849 transitions. [2024-11-11 20:35:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:06,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2024-11-11 20:35:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:06,656 INFO L225 Difference]: With dead ends: 551 [2024-11-11 20:35:06,656 INFO L226 Difference]: Without dead ends: 283 [2024-11-11 20:35:06,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:35:06,658 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 2 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:06,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1307 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-11 20:35:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2024-11-11 20:35:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 221 states have (on average 1.5294117647058822) internal successors, (338), 224 states have internal predecessors, (338), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-11 20:35:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 436 transitions. [2024-11-11 20:35:06,679 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 436 transitions. Word has length 102 [2024-11-11 20:35:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:06,681 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 436 transitions. [2024-11-11 20:35:06,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 436 transitions. [2024-11-11 20:35:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:35:06,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:06,683 INFO L218 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] [2024-11-11 20:35:06,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 20:35:06,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:06,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1009009219, now seen corresponding path program 1 times [2024-11-11 20:35:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115151085] [2024-11-11 20:35:06,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:35:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:35:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:35:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:35:07,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:07,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115151085] [2024-11-11 20:35:07,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115151085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:07,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:07,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:35:07,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697149564] [2024-11-11 20:35:07,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:07,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:35:07,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:07,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:35:07,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:07,106 INFO L87 Difference]: Start difference. First operand 283 states and 436 transitions. Second operand has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:08,553 INFO L93 Difference]: Finished difference Result 652 states and 1003 transitions. [2024-11-11 20:35:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:35:08,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 103 [2024-11-11 20:35:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:08,557 INFO L225 Difference]: With dead ends: 652 [2024-11-11 20:35:08,557 INFO L226 Difference]: Without dead ends: 392 [2024-11-11 20:35:08,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:08,559 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 594 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1603 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:08,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1107 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1603 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:35:08,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-11 20:35:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 283. [2024-11-11 20:35:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 221 states have (on average 1.5294117647058822) internal successors, (338), 224 states have internal predecessors, (338), 46 states have call successors, (46), 13 states have call predecessors, (46), 15 states have return successors, (51), 45 states have call predecessors, (51), 45 states have call successors, (51) [2024-11-11 20:35:08,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 435 transitions. [2024-11-11 20:35:08,596 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 435 transitions. Word has length 103 [2024-11-11 20:35:08,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:08,596 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 435 transitions. [2024-11-11 20:35:08,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.875) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 435 transitions. [2024-11-11 20:35:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 20:35:08,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:08,599 INFO L218 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] [2024-11-11 20:35:08,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:35:08,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:08,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash -516089808, now seen corresponding path program 2 times [2024-11-11 20:35:08,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:08,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786870447] [2024-11-11 20:35:08,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:08,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:35:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:35:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:35:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:35:08,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:08,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786870447] [2024-11-11 20:35:08,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786870447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:08,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:08,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:35:08,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701683266] [2024-11-11 20:35:08,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:08,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:35:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:08,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:35:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:08,831 INFO L87 Difference]: Start difference. First operand 283 states and 435 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:10,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:10,192 INFO L93 Difference]: Finished difference Result 654 states and 1006 transitions. [2024-11-11 20:35:10,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:35:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2024-11-11 20:35:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:10,197 INFO L225 Difference]: With dead ends: 654 [2024-11-11 20:35:10,197 INFO L226 Difference]: Without dead ends: 394 [2024-11-11 20:35:10,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:10,199 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 591 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 1797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:10,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1106 Invalid, 1797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:10,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-11 20:35:10,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 285. [2024-11-11 20:35:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 222 states have (on average 1.527027027027027) internal successors, (339), 226 states have internal predecessors, (339), 46 states have call successors, (46), 13 states have call predecessors, (46), 16 states have return successors, (53), 45 states have call predecessors, (53), 45 states have call successors, (53) [2024-11-11 20:35:10,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 438 transitions. [2024-11-11 20:35:10,231 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 438 transitions. Word has length 104 [2024-11-11 20:35:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:10,232 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 438 transitions. [2024-11-11 20:35:10,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:10,233 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 438 transitions. [2024-11-11 20:35:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 20:35:10,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:10,235 INFO L218 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] [2024-11-11 20:35:10,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:35:10,236 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:10,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash 647944610, now seen corresponding path program 1 times [2024-11-11 20:35:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:10,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881238922] [2024-11-11 20:35:10,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:35:10,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:35:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:35:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:35:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881238922] [2024-11-11 20:35:10,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881238922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:10,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:10,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:35:10,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667892357] [2024-11-11 20:35:10,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:10,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:10,471 INFO L87 Difference]: Start difference. First operand 285 states and 438 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-11 20:35:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:12,202 INFO L93 Difference]: Finished difference Result 652 states and 1001 transitions. [2024-11-11 20:35:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:35:12,203 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 105 [2024-11-11 20:35:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:12,206 INFO L225 Difference]: With dead ends: 652 [2024-11-11 20:35:12,206 INFO L226 Difference]: Without dead ends: 394 [2024-11-11 20:35:12,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:35:12,208 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 593 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:12,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1534 Invalid, 2838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:35:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-11 20:35:12,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 285. [2024-11-11 20:35:12,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 222 states have (on average 1.527027027027027) internal successors, (339), 226 states have internal predecessors, (339), 46 states have call successors, (46), 13 states have call predecessors, (46), 16 states have return successors, (52), 45 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-11 20:35:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2024-11-11 20:35:12,232 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 105 [2024-11-11 20:35:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:12,232 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2024-11-11 20:35:12,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-11 20:35:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2024-11-11 20:35:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 20:35:12,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:12,236 INFO L218 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] [2024-11-11 20:35:12,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:35:12,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:12,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2013521067, now seen corresponding path program 2 times [2024-11-11 20:35:12,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:12,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592533144] [2024-11-11 20:35:12,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:35:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:35:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:35:12,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:12,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592533144] [2024-11-11 20:35:12,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592533144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:12,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:12,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:35:12,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118865875] [2024-11-11 20:35:12,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:12,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:12,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:12,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:12,456 INFO L87 Difference]: Start difference. First operand 285 states and 437 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-11 20:35:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:14,151 INFO L93 Difference]: Finished difference Result 654 states and 1007 transitions. [2024-11-11 20:35:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:35:14,151 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 106 [2024-11-11 20:35:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:14,154 INFO L225 Difference]: With dead ends: 654 [2024-11-11 20:35:14,154 INFO L226 Difference]: Without dead ends: 396 [2024-11-11 20:35:14,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:35:14,156 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 591 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:14,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 1534 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:35:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-11 20:35:14,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 287. [2024-11-11 20:35:14,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 223 states have (on average 1.5246636771300448) internal successors, (340), 228 states have internal predecessors, (340), 46 states have call successors, (46), 13 states have call predecessors, (46), 17 states have return successors, (57), 45 states have call predecessors, (57), 45 states have call successors, (57) [2024-11-11 20:35:14,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 443 transitions. [2024-11-11 20:35:14,178 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 443 transitions. Word has length 106 [2024-11-11 20:35:14,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:14,178 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 443 transitions. [2024-11-11 20:35:14,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-11 20:35:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 443 transitions. [2024-11-11 20:35:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-11 20:35:14,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:14,181 INFO L218 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] [2024-11-11 20:35:14,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:35:14,181 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:14,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 336897351, now seen corresponding path program 1 times [2024-11-11 20:35:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:14,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793729742] [2024-11-11 20:35:14,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:14,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:35:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:35:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:14,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:14,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793729742] [2024-11-11 20:35:14,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793729742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:14,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427398369] [2024-11-11 20:35:14,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:14,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:14,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:14,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:14,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:35:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:35:14,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:14,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:35:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:14,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427398369] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:35:14,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:35:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-11 20:35:14,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283205107] [2024-11-11 20:35:14,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:35:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:35:14,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:14,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:35:14,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:14,679 INFO L87 Difference]: Start difference. First operand 287 states and 443 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:35:16,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:16,038 INFO L93 Difference]: Finished difference Result 823 states and 1335 transitions. [2024-11-11 20:35:16,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:35:16,039 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 107 [2024-11-11 20:35:16,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:16,043 INFO L225 Difference]: With dead ends: 823 [2024-11-11 20:35:16,044 INFO L226 Difference]: Without dead ends: 748 [2024-11-11 20:35:16,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:16,045 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1001 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 2115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:16,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 1360 Invalid, 2115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:35:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-11 20:35:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 615. [2024-11-11 20:35:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 487 states have (on average 1.5975359342915811) internal successors, (778), 492 states have internal predecessors, (778), 110 states have call successors, (110), 13 states have call predecessors, (110), 17 states have return successors, (131), 109 states have call predecessors, (131), 109 states have call successors, (131) [2024-11-11 20:35:16,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 1019 transitions. [2024-11-11 20:35:16,075 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 1019 transitions. Word has length 107 [2024-11-11 20:35:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:16,075 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 1019 transitions. [2024-11-11 20:35:16,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 7 states have internal predecessors, (94), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:35:16,092 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 1019 transitions. [2024-11-11 20:35:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 20:35:16,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:16,095 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:16,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:16,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:16,296 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:16,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:16,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1788465636, now seen corresponding path program 1 times [2024-11-11 20:35:16,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:16,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085871970] [2024-11-11 20:35:16,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:16,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:35:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:35:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:35:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:16,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085871970] [2024-11-11 20:35:16,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085871970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:16,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:16,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:16,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799496015] [2024-11-11 20:35:16,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:16,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:16,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:16,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:16,398 INFO L87 Difference]: Start difference. First operand 615 states and 1019 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:17,412 INFO L93 Difference]: Finished difference Result 1604 states and 2706 transitions. [2024-11-11 20:35:17,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:17,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-11 20:35:17,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:17,418 INFO L225 Difference]: With dead ends: 1604 [2024-11-11 20:35:17,418 INFO L226 Difference]: Without dead ends: 1057 [2024-11-11 20:35:17,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:17,421 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 692 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:17,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 854 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:35:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2024-11-11 20:35:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 940. [2024-11-11 20:35:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 748 states have (on average 1.608288770053476) internal successors, (1203), 753 states have internal predecessors, (1203), 174 states have call successors, (174), 13 states have call predecessors, (174), 17 states have return successors, (205), 173 states have call predecessors, (205), 173 states have call successors, (205) [2024-11-11 20:35:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1582 transitions. [2024-11-11 20:35:17,461 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1582 transitions. Word has length 113 [2024-11-11 20:35:17,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:17,461 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1582 transitions. [2024-11-11 20:35:17,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1582 transitions. [2024-11-11 20:35:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:35:17,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:17,467 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:17,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:35:17,467 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:17,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:17,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1421409414, now seen corresponding path program 1 times [2024-11-11 20:35:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:17,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194560074] [2024-11-11 20:35:17,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:17,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:35:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:35:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:35:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:35:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:17,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:17,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194560074] [2024-11-11 20:35:17,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194560074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:17,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:17,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:17,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683134246] [2024-11-11 20:35:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:17,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:17,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:17,566 INFO L87 Difference]: Start difference. First operand 940 states and 1582 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:18,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:18,528 INFO L93 Difference]: Finished difference Result 2384 states and 4055 transitions. [2024-11-11 20:35:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:18,529 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-11 20:35:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:18,538 INFO L225 Difference]: With dead ends: 2384 [2024-11-11 20:35:18,538 INFO L226 Difference]: Without dead ends: 1565 [2024-11-11 20:35:18,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:18,543 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 691 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:18,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 813 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:35:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-11 20:35:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1448. [2024-11-11 20:35:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1161 states have (on average 1.6141257536606375) internal successors, (1874), 1166 states have internal predecessors, (1874), 269 states have call successors, (269), 13 states have call predecessors, (269), 17 states have return successors, (300), 268 states have call predecessors, (300), 268 states have call successors, (300) [2024-11-11 20:35:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2443 transitions. [2024-11-11 20:35:18,610 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2443 transitions. Word has length 114 [2024-11-11 20:35:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:18,611 INFO L471 AbstractCegarLoop]: Abstraction has 1448 states and 2443 transitions. [2024-11-11 20:35:18,611 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2443 transitions. [2024-11-11 20:35:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-11 20:35:18,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:18,619 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:18,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:35:18,619 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:18,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1395731194, now seen corresponding path program 1 times [2024-11-11 20:35:18,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:18,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992965744] [2024-11-11 20:35:18,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:18,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:35:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:35:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:35:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:35:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,761 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:18,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:18,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992965744] [2024-11-11 20:35:18,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992965744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:18,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:18,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:18,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143416543] [2024-11-11 20:35:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:18,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:18,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:18,764 INFO L87 Difference]: Start difference. First operand 1448 states and 2443 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:19,675 INFO L93 Difference]: Finished difference Result 3536 states and 6064 transitions. [2024-11-11 20:35:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:19,675 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-11 20:35:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:19,689 INFO L225 Difference]: With dead ends: 3536 [2024-11-11 20:35:19,689 INFO L226 Difference]: Without dead ends: 2334 [2024-11-11 20:35:19,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:19,697 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 690 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:19,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 810 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:35:19,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2024-11-11 20:35:19,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2217. [2024-11-11 20:35:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2217 states, 1807 states have (on average 1.618705035971223) internal successors, (2925), 1812 states have internal predecessors, (2925), 392 states have call successors, (392), 13 states have call predecessors, (392), 17 states have return successors, (439), 391 states have call predecessors, (439), 391 states have call successors, (439) [2024-11-11 20:35:19,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 3756 transitions. [2024-11-11 20:35:19,817 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 3756 transitions. Word has length 115 [2024-11-11 20:35:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:19,817 INFO L471 AbstractCegarLoop]: Abstraction has 2217 states and 3756 transitions. [2024-11-11 20:35:19,817 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:19,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 3756 transitions. [2024-11-11 20:35:19,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-11 20:35:19,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:19,826 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:19,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:35:19,827 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:19,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:19,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2030264231, now seen corresponding path program 1 times [2024-11-11 20:35:19,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:19,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494650968] [2024-11-11 20:35:19,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:19,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:35:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:35:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:35:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:19,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:19,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494650968] [2024-11-11 20:35:19,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494650968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:19,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383732404] [2024-11-11 20:35:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:19,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:19,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:19,946 INFO L87 Difference]: Start difference. First operand 2217 states and 3756 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:20,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:20,856 INFO L93 Difference]: Finished difference Result 5330 states and 9198 transitions. [2024-11-11 20:35:20,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:20,857 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-11 20:35:20,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:20,875 INFO L225 Difference]: With dead ends: 5330 [2024-11-11 20:35:20,875 INFO L226 Difference]: Without dead ends: 3563 [2024-11-11 20:35:20,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:20,882 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 686 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:20,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 811 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 20:35:20,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2024-11-11 20:35:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3446. [2024-11-11 20:35:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 2857 states have (on average 1.6212810640532027) internal successors, (4632), 2862 states have internal predecessors, (4632), 571 states have call successors, (571), 13 states have call predecessors, (571), 17 states have return successors, (644), 570 states have call predecessors, (644), 570 states have call successors, (644) [2024-11-11 20:35:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 5847 transitions. [2024-11-11 20:35:21,030 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 5847 transitions. Word has length 116 [2024-11-11 20:35:21,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:21,030 INFO L471 AbstractCegarLoop]: Abstraction has 3446 states and 5847 transitions. [2024-11-11 20:35:21,031 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 5847 transitions. [2024-11-11 20:35:21,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-11 20:35:21,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:21,041 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:21,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:35:21,042 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:21,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:21,042 INFO L85 PathProgramCache]: Analyzing trace with hash -339692734, now seen corresponding path program 1 times [2024-11-11 20:35:21,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:21,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206112827] [2024-11-11 20:35:21,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:21,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:35:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:35:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:35:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206112827] [2024-11-11 20:35:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206112827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:21,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:21,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:21,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876784826] [2024-11-11 20:35:21,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:21,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:21,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:21,185 INFO L87 Difference]: Start difference. First operand 3446 states and 5847 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:22,156 INFO L93 Difference]: Finished difference Result 8278 states and 14345 transitions. [2024-11-11 20:35:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:22,157 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-11 20:35:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:22,206 INFO L225 Difference]: With dead ends: 8278 [2024-11-11 20:35:22,206 INFO L226 Difference]: Without dead ends: 5594 [2024-11-11 20:35:22,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:22,215 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 687 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:22,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 821 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:35:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5594 states. [2024-11-11 20:35:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5594 to 5477. [2024-11-11 20:35:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 4512 states have (on average 1.6143617021276595) internal successors, (7284), 4517 states have internal predecessors, (7284), 947 states have call successors, (947), 13 states have call predecessors, (947), 17 states have return successors, (1064), 946 states have call predecessors, (1064), 946 states have call successors, (1064) [2024-11-11 20:35:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 9295 transitions. [2024-11-11 20:35:22,435 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 9295 transitions. Word has length 117 [2024-11-11 20:35:22,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:22,435 INFO L471 AbstractCegarLoop]: Abstraction has 5477 states and 9295 transitions. [2024-11-11 20:35:22,435 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:22,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 9295 transitions. [2024-11-11 20:35:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-11 20:35:22,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:22,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:22,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:35:22,449 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:22,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1799722347, now seen corresponding path program 1 times [2024-11-11 20:35:22,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477600797] [2024-11-11 20:35:22,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:22,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:35:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:35:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:35:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:22,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:22,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477600797] [2024-11-11 20:35:22,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477600797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:22,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:22,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:22,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027904613] [2024-11-11 20:35:22,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:22,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:22,592 INFO L87 Difference]: Start difference. First operand 5477 states and 9295 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:23,694 INFO L93 Difference]: Finished difference Result 13615 states and 23566 transitions. [2024-11-11 20:35:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:23,694 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-11-11 20:35:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:23,767 INFO L225 Difference]: With dead ends: 13615 [2024-11-11 20:35:23,767 INFO L226 Difference]: Without dead ends: 9277 [2024-11-11 20:35:23,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:23,785 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 682 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:23,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 826 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:35:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2024-11-11 20:35:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 9160. [2024-11-11 20:35:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9160 states, 7589 states have (on average 1.6115430227961522) internal successors, (12230), 7594 states have internal predecessors, (12230), 1553 states have call successors, (1553), 13 states have call predecessors, (1553), 17 states have return successors, (1748), 1552 states have call predecessors, (1748), 1552 states have call successors, (1748) [2024-11-11 20:35:24,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9160 states to 9160 states and 15531 transitions. [2024-11-11 20:35:24,247 INFO L78 Accepts]: Start accepts. Automaton has 9160 states and 15531 transitions. Word has length 118 [2024-11-11 20:35:24,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:24,248 INFO L471 AbstractCegarLoop]: Abstraction has 9160 states and 15531 transitions. [2024-11-11 20:35:24,249 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:24,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9160 states and 15531 transitions. [2024-11-11 20:35:24,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-11 20:35:24,268 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:24,269 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:24,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:35:24,269 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:24,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash -783687248, now seen corresponding path program 1 times [2024-11-11 20:35:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:24,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117246011] [2024-11-11 20:35:24,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:35:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:35:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:24,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:24,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117246011] [2024-11-11 20:35:24,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117246011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:24,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:24,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:24,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846379014] [2024-11-11 20:35:24,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:24,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:24,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:24,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:24,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:24,367 INFO L87 Difference]: Start difference. First operand 9160 states and 15531 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:25,674 INFO L93 Difference]: Finished difference Result 23799 states and 41112 transitions. [2024-11-11 20:35:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:25,675 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-11 20:35:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:25,737 INFO L225 Difference]: With dead ends: 23799 [2024-11-11 20:35:25,737 INFO L226 Difference]: Without dead ends: 16230 [2024-11-11 20:35:25,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:25,764 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 681 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:25,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 831 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:35:25,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16230 states. [2024-11-11 20:35:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16230 to 16113. [2024-11-11 20:35:26,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16113 states, 13339 states have (on average 1.6022190569008172) internal successors, (21372), 13344 states have internal predecessors, (21372), 2756 states have call successors, (2756), 13 states have call predecessors, (2756), 17 states have return successors, (3095), 2755 states have call predecessors, (3095), 2755 states have call successors, (3095) [2024-11-11 20:35:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16113 states to 16113 states and 27223 transitions. [2024-11-11 20:35:26,543 INFO L78 Accepts]: Start accepts. Automaton has 16113 states and 27223 transitions. Word has length 119 [2024-11-11 20:35:26,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:26,543 INFO L471 AbstractCegarLoop]: Abstraction has 16113 states and 27223 transitions. [2024-11-11 20:35:26,544 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 16113 states and 27223 transitions. [2024-11-11 20:35:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 20:35:26,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:26,569 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:26,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:35:26,570 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:26,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash 25110956, now seen corresponding path program 1 times [2024-11-11 20:35:26,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:26,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822021416] [2024-11-11 20:35:26,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:26,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:35:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:35:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:26,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:26,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822021416] [2024-11-11 20:35:26,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822021416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:26,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:26,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:26,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644712014] [2024-11-11 20:35:26,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:26,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:26,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:26,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:26,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:26,783 INFO L87 Difference]: Start difference. First operand 16113 states and 27223 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:28,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:28,121 INFO L93 Difference]: Finished difference Result 42765 states and 73711 transitions. [2024-11-11 20:35:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:28,121 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-11-11 20:35:28,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:28,249 INFO L225 Difference]: With dead ends: 42765 [2024-11-11 20:35:28,249 INFO L226 Difference]: Without dead ends: 28885 [2024-11-11 20:35:28,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:28,298 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 681 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:28,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 810 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 20:35:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28885 states. [2024-11-11 20:35:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28885 to 28768. [2024-11-11 20:35:29,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28768 states, 23955 states have (on average 1.5978292632018367) internal successors, (38276), 23960 states have internal predecessors, (38276), 4795 states have call successors, (4795), 13 states have call predecessors, (4795), 17 states have return successors, (5408), 4794 states have call predecessors, (5408), 4794 states have call successors, (5408) [2024-11-11 20:35:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28768 states to 28768 states and 48479 transitions. [2024-11-11 20:35:29,792 INFO L78 Accepts]: Start accepts. Automaton has 28768 states and 48479 transitions. Word has length 120 [2024-11-11 20:35:29,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:29,794 INFO L471 AbstractCegarLoop]: Abstraction has 28768 states and 48479 transitions. [2024-11-11 20:35:29,794 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 28768 states and 48479 transitions. [2024-11-11 20:35:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:35:29,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:29,819 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:29,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:35:29,819 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:29,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:29,819 INFO L85 PathProgramCache]: Analyzing trace with hash -69213806, now seen corresponding path program 1 times [2024-11-11 20:35:29,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:29,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540632104] [2024-11-11 20:35:29,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:29,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:35:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:35:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:29,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:29,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540632104] [2024-11-11 20:35:29,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540632104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:29,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:29,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:29,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351488733] [2024-11-11 20:35:29,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:29,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:29,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:29,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:29,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:29,925 INFO L87 Difference]: Start difference. First operand 28768 states and 48479 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:32,009 INFO L93 Difference]: Finished difference Result 78527 states and 134470 transitions. [2024-11-11 20:35:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:32,009 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-11 20:35:32,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:32,234 INFO L225 Difference]: With dead ends: 78527 [2024-11-11 20:35:32,235 INFO L226 Difference]: Without dead ends: 52764 [2024-11-11 20:35:32,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:32,317 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 679 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:32,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 822 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:35:32,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52764 states. [2024-11-11 20:35:34,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52764 to 52647. [2024-11-11 20:35:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52647 states, 44119 states have (on average 1.5921711734173485) internal successors, (70245), 44124 states have internal predecessors, (70245), 8510 states have call successors, (8510), 13 states have call predecessors, (8510), 17 states have return successors, (9655), 8509 states have call predecessors, (9655), 8509 states have call successors, (9655) [2024-11-11 20:35:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52647 states to 52647 states and 88410 transitions. [2024-11-11 20:35:34,757 INFO L78 Accepts]: Start accepts. Automaton has 52647 states and 88410 transitions. Word has length 121 [2024-11-11 20:35:34,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:34,757 INFO L471 AbstractCegarLoop]: Abstraction has 52647 states and 88410 transitions. [2024-11-11 20:35:34,758 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 52647 states and 88410 transitions. [2024-11-11 20:35:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 20:35:34,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:34,779 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:34,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 20:35:34,780 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:34,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:34,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1210840268, now seen corresponding path program 1 times [2024-11-11 20:35:34,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:34,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985362395] [2024-11-11 20:35:34,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:34,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:34,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:34,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:35:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:35:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:35:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:34,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:34,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985362395] [2024-11-11 20:35:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985362395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:34,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:34,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:34,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192970059] [2024-11-11 20:35:34,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:34,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:34,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:34,884 INFO L87 Difference]: Start difference. First operand 52647 states and 88410 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:37,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:37,520 INFO L93 Difference]: Finished difference Result 98298 states and 168657 transitions. [2024-11-11 20:35:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:37,521 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-11 20:35:37,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:37,937 INFO L225 Difference]: With dead ends: 98298 [2024-11-11 20:35:37,937 INFO L226 Difference]: Without dead ends: 98223 [2024-11-11 20:35:37,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:37,990 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 671 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:37,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 851 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:35:38,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98223 states. [2024-11-11 20:35:40,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98223 to 98106. [2024-11-11 20:35:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98106 states, 82779 states have (on average 1.5851242464876358) internal successors, (131215), 82784 states have internal predecessors, (131215), 15309 states have call successors, (15309), 13 states have call predecessors, (15309), 17 states have return successors, (17500), 15308 states have call predecessors, (17500), 15308 states have call successors, (17500) [2024-11-11 20:35:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98106 states to 98106 states and 164024 transitions. [2024-11-11 20:35:41,111 INFO L78 Accepts]: Start accepts. Automaton has 98106 states and 164024 transitions. Word has length 122 [2024-11-11 20:35:41,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:41,112 INFO L471 AbstractCegarLoop]: Abstraction has 98106 states and 164024 transitions. [2024-11-11 20:35:41,112 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, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:35:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 98106 states and 164024 transitions. [2024-11-11 20:35:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-11 20:35:41,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:41,135 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:41,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 20:35:41,135 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:41,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:41,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2122200879, now seen corresponding path program 1 times [2024-11-11 20:35:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:41,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586067715] [2024-11-11 20:35:41,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:41,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:35:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:35:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:35:41,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586067715] [2024-11-11 20:35:41,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586067715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953023545] [2024-11-11 20:35:41,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:41,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:41,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:41,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:41,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 20:35:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:41,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-11 20:35:41,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:42,278 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:35:42,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953023545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:42,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2024-11-11 20:35:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702052283] [2024-11-11 20:35:42,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:42,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:42,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2024-11-11 20:35:42,281 INFO L87 Difference]: Start difference. First operand 98106 states and 164024 transitions. Second operand has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-11 20:35:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:45,155 INFO L93 Difference]: Finished difference Result 98283 states and 164251 transitions. [2024-11-11 20:35:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:35:45,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 123 [2024-11-11 20:35:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:45,515 INFO L225 Difference]: With dead ends: 98283 [2024-11-11 20:35:45,515 INFO L226 Difference]: Without dead ends: 98214 [2024-11-11 20:35:45,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2024-11-11 20:35:45,570 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 444 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:45,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 3181 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:35:45,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98214 states. [2024-11-11 20:35:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98214 to 98192. [2024-11-11 20:35:48,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98192 states, 82848 states have (on average 1.584914542294322) internal successors, (131307), 82853 states have internal predecessors, (131307), 15317 states have call successors, (15317), 20 states have call predecessors, (15317), 26 states have return successors, (17510), 15318 states have call predecessors, (17510), 15315 states have call successors, (17510) [2024-11-11 20:35:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98192 states to 98192 states and 164134 transitions. [2024-11-11 20:35:49,148 INFO L78 Accepts]: Start accepts. Automaton has 98192 states and 164134 transitions. Word has length 123 [2024-11-11 20:35:49,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:49,149 INFO L471 AbstractCegarLoop]: Abstraction has 98192 states and 164134 transitions. [2024-11-11 20:35:49,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 10 states have internal predecessors, (91), 5 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-11 20:35:49,149 INFO L276 IsEmpty]: Start isEmpty. Operand 98192 states and 164134 transitions. [2024-11-11 20:35:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:35:49,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:49,175 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:49,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 20:35:49,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:49,376 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:49,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash 341269061, now seen corresponding path program 1 times [2024-11-11 20:35:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091710654] [2024-11-11 20:35:49,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:49,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:35:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:35:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:35:49,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:49,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091710654] [2024-11-11 20:35:49,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091710654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:49,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162620491] [2024-11-11 20:35:49,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:49,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:49,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:49,510 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:49,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 20:35:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:49,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:35:49,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 20:35:49,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:49,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162620491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:49,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:49,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:35:49,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414470300] [2024-11-11 20:35:49,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:49,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:49,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:49,841 INFO L87 Difference]: Start difference. First operand 98192 states and 164134 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:52,137 INFO L93 Difference]: Finished difference Result 98268 states and 164230 transitions. [2024-11-11 20:35:52,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:52,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-11 20:35:52,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:52,523 INFO L225 Difference]: With dead ends: 98268 [2024-11-11 20:35:52,523 INFO L226 Difference]: Without dead ends: 98196 [2024-11-11 20:35:52,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:52,589 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 0 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:52,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1333 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98196 states. [2024-11-11 20:35:55,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98196 to 98194. [2024-11-11 20:35:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98194 states, 82849 states have (on average 1.5849074822870524) internal successors, (131308), 82855 states have internal predecessors, (131308), 15317 states have call successors, (15317), 20 states have call predecessors, (15317), 27 states have return successors, (17511), 15318 states have call predecessors, (17511), 15315 states have call successors, (17511) [2024-11-11 20:35:55,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98194 states to 98194 states and 164136 transitions. [2024-11-11 20:35:55,821 INFO L78 Accepts]: Start accepts. Automaton has 98194 states and 164136 transitions. Word has length 124 [2024-11-11 20:35:55,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:55,822 INFO L471 AbstractCegarLoop]: Abstraction has 98194 states and 164136 transitions. [2024-11-11 20:35:55,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-11 20:35:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 98194 states and 164136 transitions. [2024-11-11 20:35:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:35:55,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:55,850 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:55,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:56,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-11 20:35:56,051 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:56,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1341977102, now seen corresponding path program 1 times [2024-11-11 20:35:56,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:56,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828401040] [2024-11-11 20:35:56,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:56,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:35:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:35:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:35:56,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:56,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828401040] [2024-11-11 20:35:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828401040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:56,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:35:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023938932] [2024-11-11 20:35:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:56,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:35:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:35:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:56,239 INFO L87 Difference]: Start difference. First operand 98194 states and 164136 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-11 20:36:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:01,579 INFO L93 Difference]: Finished difference Result 191752 states and 327002 transitions. [2024-11-11 20:36:01,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-11 20:36:01,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 124 [2024-11-11 20:36:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:02,619 INFO L225 Difference]: With dead ends: 191752 [2024-11-11 20:36:02,620 INFO L226 Difference]: Without dead ends: 191610 [2024-11-11 20:36:02,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-11 20:36:02,677 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1430 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:02,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 1113 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 20:36:02,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191610 states.