./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0289d2bc768d77152556c65688d1c231999d9919b651d65a3b9e8da8ee9b3f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:44:10,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:44:10,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:44:10,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:44:10,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:44:10,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:44:10,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:44:10,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:44:10,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:44:10,199 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:44:10,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:44:10,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:44:10,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:44:10,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:44:10,204 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:44:10,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:44:10,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:44:10,205 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:44:10,205 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:44:10,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:44:10,206 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:44:10,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:44:10,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:44:10,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:44:10,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:44:10,208 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:44:10,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:44:10,208 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:44:10,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:44:10,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:44:10,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:44:10,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:44:10,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:44:10,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:44:10,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:44:10,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:44:10,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:44:10,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:44:10,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:44:10,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:44:10,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:44:10,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:44:10,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0289d2bc768d77152556c65688d1c231999d9919b651d65a3b9e8da8ee9b3f9 [2024-11-22 01:44:10,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:44:10,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:44:10,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:44:10,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:44:10,513 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:44:10,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c [2024-11-22 01:44:11,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:44:12,283 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:44:12,283 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product22.cil.c [2024-11-22 01:44:12,324 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2593c3e15/ebfa6c99234a46efa568d69bad245d7a/FLAG1081d89bc [2024-11-22 01:44:12,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2593c3e15/ebfa6c99234a46efa568d69bad245d7a [2024-11-22 01:44:12,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:44:12,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:44:12,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:44:12,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:44:12,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:44:12,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:12" (1/1) ... [2024-11-22 01:44:12,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19979a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:12, skipping insertion in model container [2024-11-22 01:44:12,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:12" (1/1) ... [2024-11-22 01:44:12,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:44:12,810 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/elevator_spec1_product22.cil.c[27271,27284] [2024-11-22 01:44:12,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:44:13,000 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:44:13,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-22 01:44:13,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] [2024-11-22 01:44:13,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1087] [2024-11-22 01:44:13,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1096] [2024-11-22 01:44:13,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1197] [2024-11-22 01:44:13,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1554] [2024-11-22 01:44:13,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1567] [2024-11-22 01:44:13,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1687] [2024-11-22 01:44:13,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1722] [2024-11-22 01:44:13,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3280] [2024-11-22 01:44:13,051 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/elevator_spec1_product22.cil.c[27271,27284] [2024-11-22 01:44:13,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:44:13,172 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:44:13,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13 WrapperNode [2024-11-22 01:44:13,173 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:44:13,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:44:13,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:44:13,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:44:13,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,258 INFO L138 Inliner]: procedures = 94, calls = 346, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 864 [2024-11-22 01:44:13,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:44:13,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:44:13,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:44:13,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:44:13,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,317 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-22 01:44:13,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,344 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,362 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:44:13,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:44:13,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:44:13,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:44:13,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (1/1) ... [2024-11-22 01:44:13,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:44:13,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:13,443 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) [2024-11-22 01:44:13,446 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 [2024-11-22 01:44:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-22 01:44:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-22 01:44:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:44:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:44:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:44:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:44:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:44:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:44:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:44:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:44:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:44:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:44:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:44:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:44:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:44:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-22 01:44:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-22 01:44:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:44:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:44:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:44:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:44:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:44:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:44:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:44:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:44:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:44:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:44:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:44:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:44:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:44:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:44:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:44:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:44:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:44:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:44:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:44:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:44:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:44:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:44:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:44:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:44:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:44:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:44:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:44:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:44:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:44:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-22 01:44:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-22 01:44:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:44:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:44:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:44:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:44:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:44:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:44:13,721 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:44:13,725 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:44:15,046 INFO L? ?]: Removed 450 outVars from TransFormulas that were not future-live. [2024-11-22 01:44:15,047 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:44:15,080 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:44:15,081 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:44:15,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:15 BoogieIcfgContainer [2024-11-22 01:44:15,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:44:15,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:44:15,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:44:15,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:44:15,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:44:12" (1/3) ... [2024-11-22 01:44:15,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24078cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:15, skipping insertion in model container [2024-11-22 01:44:15,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:13" (2/3) ... [2024-11-22 01:44:15,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24078cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:44:15, skipping insertion in model container [2024-11-22 01:44:15,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:44:15" (3/3) ... [2024-11-22 01:44:15,113 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product22.cil.c [2024-11-22 01:44:15,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:44:15,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:44:15,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:44:15,226 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;@4195d12f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:44:15,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:44:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 579 states, 450 states have (on average 1.6866666666666668) internal successors, (759), 473 states have internal predecessors, (759), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-22 01:44:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-22 01:44:15,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:15,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:15,255 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:15,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:15,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1153428289, now seen corresponding path program 1 times [2024-11-22 01:44:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:15,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079518442] [2024-11-22 01:44:15,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:15,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:15,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079518442] [2024-11-22 01:44:15,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079518442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780099446] [2024-11-22 01:44:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:15,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:15,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:15,851 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) [2024-11-22 01:44:15,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:44:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:16,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 01:44:16,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:44:16,349 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:16,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780099446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:16,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:16,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2024-11-22 01:44:16,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326481804] [2024-11-22 01:44:16,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:16,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:44:16,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:44:16,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:44:16,391 INFO L87 Difference]: Start difference. First operand has 579 states, 450 states have (on average 1.6866666666666668) internal successors, (759), 473 states have internal predecessors, (759), 101 states have call successors, (101), 26 states have call predecessors, (101), 26 states have return successors, (101), 94 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 01:44:16,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:16,489 INFO L93 Difference]: Finished difference Result 600 states and 991 transitions. [2024-11-22 01:44:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:44:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2024-11-22 01:44:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:16,516 INFO L225 Difference]: With dead ends: 600 [2024-11-22 01:44:16,516 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:44:16,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:44:16,522 INFO L432 NwaCegarLoop]: 952 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, 952 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 [2024-11-22 01:44:16,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:16,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:44:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-22 01:44:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 444 states have (on average 1.6846846846846846) internal successors, (748), 465 states have internal predecessors, (748), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 945 transitions. [2024-11-22 01:44:16,605 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 945 transitions. Word has length 83 [2024-11-22 01:44:16,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:16,606 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 945 transitions. [2024-11-22 01:44:16,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-22 01:44:16,607 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 945 transitions. [2024-11-22 01:44:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 01:44:16,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:16,613 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:16,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:16,814 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 [2024-11-22 01:44:16,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:16,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash 833216110, now seen corresponding path program 1 times [2024-11-22 01:44:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:16,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548922900] [2024-11-22 01:44:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:16,993 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:16,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:16,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548922900] [2024-11-22 01:44:16,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548922900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:16,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569867573] [2024-11-22 01:44:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:17,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:17,015 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) [2024-11-22 01:44:17,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:44:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:17,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:17,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:17,506 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:17,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569867573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:17,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:17,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995444703] [2024-11-22 01:44:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:17,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:17,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:17,513 INFO L87 Difference]: Start difference. First operand 571 states and 945 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:17,623 INFO L93 Difference]: Finished difference Result 1133 states and 1882 transitions. [2024-11-22 01:44:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:44:17,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2024-11-22 01:44:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:17,630 INFO L225 Difference]: With dead ends: 1133 [2024-11-22 01:44:17,631 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:44:17,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:17,639 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 5 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:17,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2793 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:17,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:44:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-22 01:44:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 444 states have (on average 1.6824324324324325) internal successors, (747), 465 states have internal predecessors, (747), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 944 transitions. [2024-11-22 01:44:17,693 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 944 transitions. Word has length 85 [2024-11-22 01:44:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:17,695 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 944 transitions. [2024-11-22 01:44:17,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 944 transitions. [2024-11-22 01:44:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 01:44:17,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:17,701 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:17,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:44:17,902 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 [2024-11-22 01:44:17,902 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:17,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:17,903 INFO L85 PathProgramCache]: Analyzing trace with hash -108590114, now seen corresponding path program 1 times [2024-11-22 01:44:17,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:17,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263620129] [2024-11-22 01:44:17,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:17,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:18,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:18,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:18,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263620129] [2024-11-22 01:44:18,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263620129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51792362] [2024-11-22 01:44:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:18,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:18,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:18,109 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) [2024-11-22 01:44:18,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:44:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:18,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:18,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:18,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:18,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51792362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:18,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859019257] [2024-11-22 01:44:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:18,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:18,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:18,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:18,538 INFO L87 Difference]: Start difference. First operand 571 states and 944 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:18,610 INFO L93 Difference]: Finished difference Result 1133 states and 1880 transitions. [2024-11-22 01:44:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:44:18,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2024-11-22 01:44:18,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:18,618 INFO L225 Difference]: With dead ends: 1133 [2024-11-22 01:44:18,618 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:44:18,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:18,622 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 4 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:18,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2793 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:18,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:44:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-22 01:44:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 444 states have (on average 1.6801801801801801) internal successors, (746), 465 states have internal predecessors, (746), 101 states have call successors, (101), 26 states have call predecessors, (101), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 943 transitions. [2024-11-22 01:44:18,657 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 943 transitions. Word has length 87 [2024-11-22 01:44:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:18,658 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 943 transitions. [2024-11-22 01:44:18,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:18,659 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 943 transitions. [2024-11-22 01:44:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 01:44:18,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:18,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:18,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:44:18,867 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 [2024-11-22 01:44:18,867 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:18,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash -846790546, now seen corresponding path program 1 times [2024-11-22 01:44:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:18,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435274469] [2024-11-22 01:44:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:18,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:18,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435274469] [2024-11-22 01:44:18,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435274469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:18,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038738326] [2024-11-22 01:44:18,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:18,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:18,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:18,997 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) [2024-11-22 01:44:18,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:44:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:19,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:19,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:19,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:19,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038738326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:19,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:19,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25283624] [2024-11-22 01:44:19,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:19,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:19,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:19,382 INFO L87 Difference]: Start difference. First operand 571 states and 943 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:19,462 INFO L93 Difference]: Finished difference Result 1140 states and 1887 transitions. [2024-11-22 01:44:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:19,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2024-11-22 01:44:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:19,467 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 01:44:19,468 INFO L226 Difference]: Without dead ends: 580 [2024-11-22 01:44:19,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:19,471 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 13 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:19,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2790 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-22 01:44:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-11-22 01:44:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.676991150442478) internal successors, (758), 473 states have internal predecessors, (758), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 955 transitions. [2024-11-22 01:44:19,496 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 955 transitions. Word has length 89 [2024-11-22 01:44:19,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:19,497 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 955 transitions. [2024-11-22 01:44:19,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 955 transitions. [2024-11-22 01:44:19,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 01:44:19,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:19,499 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:19,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:44:19,700 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 [2024-11-22 01:44:19,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:19,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 84274444, now seen corresponding path program 1 times [2024-11-22 01:44:19,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944935592] [2024-11-22 01:44:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:19,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:19,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:19,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944935592] [2024-11-22 01:44:19,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944935592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:19,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146974251] [2024-11-22 01:44:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:19,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:19,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:19,818 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) [2024-11-22 01:44:19,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:44:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:20,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:20,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:20,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:20,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146974251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:20,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:20,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:20,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710120030] [2024-11-22 01:44:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:20,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:20,196 INFO L87 Difference]: Start difference. First operand 580 states and 955 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:20,281 INFO L93 Difference]: Finished difference Result 1142 states and 1888 transitions. [2024-11-22 01:44:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2024-11-22 01:44:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:20,286 INFO L225 Difference]: With dead ends: 1142 [2024-11-22 01:44:20,287 INFO L226 Difference]: Without dead ends: 580 [2024-11-22 01:44:20,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:20,292 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 11 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:20,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2790 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:20,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-22 01:44:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-11-22 01:44:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.674778761061947) internal successors, (757), 473 states have internal predecessors, (757), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 954 transitions. [2024-11-22 01:44:20,318 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 954 transitions. Word has length 90 [2024-11-22 01:44:20,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:20,319 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 954 transitions. [2024-11-22 01:44:20,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 954 transitions. [2024-11-22 01:44:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 01:44:20,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:20,321 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:20,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:20,522 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 [2024-11-22 01:44:20,523 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1944240334, now seen corresponding path program 1 times [2024-11-22 01:44:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258542209] [2024-11-22 01:44:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:20,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258542209] [2024-11-22 01:44:20,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258542209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:20,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416869819] [2024-11-22 01:44:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:20,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:20,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:20,659 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) [2024-11-22 01:44:20,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:44:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:20,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:20,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:21,012 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:21,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416869819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:21,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:21,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:21,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10668556] [2024-11-22 01:44:21,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:21,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:21,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:21,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:21,015 INFO L87 Difference]: Start difference. First operand 580 states and 954 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:21,080 INFO L93 Difference]: Finished difference Result 1142 states and 1887 transitions. [2024-11-22 01:44:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:21,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2024-11-22 01:44:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:21,085 INFO L225 Difference]: With dead ends: 1142 [2024-11-22 01:44:21,086 INFO L226 Difference]: Without dead ends: 580 [2024-11-22 01:44:21,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:21,089 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 10 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:21,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2790 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:21,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-22 01:44:21,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-11-22 01:44:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 452 states have (on average 1.6725663716814159) internal successors, (756), 473 states have internal predecessors, (756), 101 states have call successors, (101), 27 states have call predecessors, (101), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-22 01:44:21,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 953 transitions. [2024-11-22 01:44:21,133 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 953 transitions. Word has length 91 [2024-11-22 01:44:21,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:21,133 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 953 transitions. [2024-11-22 01:44:21,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 953 transitions. [2024-11-22 01:44:21,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 01:44:21,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:21,135 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:21,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:44:21,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:21,336 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:21,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:21,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1230447408, now seen corresponding path program 1 times [2024-11-22 01:44:21,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:21,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78952730] [2024-11-22 01:44:21,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:21,538 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:21,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:21,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78952730] [2024-11-22 01:44:21,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78952730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:21,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547630398] [2024-11-22 01:44:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:21,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:21,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:21,543 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) [2024-11-22 01:44:21,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:44:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:21,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:44:21,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:21,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:21,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547630398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:21,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:21,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-22 01:44:21,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104361671] [2024-11-22 01:44:21,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:21,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:21,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:44:21,947 INFO L87 Difference]: Start difference. First operand 580 states and 953 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:22,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:22,090 INFO L93 Difference]: Finished difference Result 1161 states and 1917 transitions. [2024-11-22 01:44:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:22,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2024-11-22 01:44:22,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:22,096 INFO L225 Difference]: With dead ends: 1161 [2024-11-22 01:44:22,096 INFO L226 Difference]: Without dead ends: 603 [2024-11-22 01:44:22,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:44:22,100 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 100 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5512 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:22,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5512 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:22,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-22 01:44:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 599. [2024-11-22 01:44:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 468 states have (on average 1.670940170940171) internal successors, (782), 491 states have internal predecessors, (782), 102 states have call successors, (102), 27 states have call predecessors, (102), 28 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2024-11-22 01:44:22,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 984 transitions. [2024-11-22 01:44:22,127 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 984 transitions. Word has length 92 [2024-11-22 01:44:22,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:22,128 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 984 transitions. [2024-11-22 01:44:22,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:22,128 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 984 transitions. [2024-11-22 01:44:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 01:44:22,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:22,130 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:22,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:44:22,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:22,331 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:22,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash -363395183, now seen corresponding path program 1 times [2024-11-22 01:44:22,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:22,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101746636] [2024-11-22 01:44:22,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:22,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:22,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101746636] [2024-11-22 01:44:22,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101746636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358366186] [2024-11-22 01:44:22,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:22,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:22,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:22,455 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) [2024-11-22 01:44:22,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:44:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:22,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:22,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:22,799 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:22,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358366186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:22,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:22,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:22,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750317435] [2024-11-22 01:44:22,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:22,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:22,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:22,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:22,802 INFO L87 Difference]: Start difference. First operand 599 states and 984 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:22,938 INFO L93 Difference]: Finished difference Result 1217 states and 2018 transitions. [2024-11-22 01:44:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:44:22,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-22 01:44:22,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:22,944 INFO L225 Difference]: With dead ends: 1217 [2024-11-22 01:44:22,944 INFO L226 Difference]: Without dead ends: 614 [2024-11-22 01:44:22,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:22,947 INFO L432 NwaCegarLoop]: 907 mSDtfsCounter, 76 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:22,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2681 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:22,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-22 01:44:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 599. [2024-11-22 01:44:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 468 states have (on average 1.6602564102564104) internal successors, (777), 491 states have internal predecessors, (777), 102 states have call successors, (102), 27 states have call predecessors, (102), 28 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2024-11-22 01:44:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 979 transitions. [2024-11-22 01:44:22,970 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 979 transitions. Word has length 92 [2024-11-22 01:44:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:22,970 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 979 transitions. [2024-11-22 01:44:22,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 979 transitions. [2024-11-22 01:44:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 01:44:22,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:22,973 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:22,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 01:44:23,174 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,SelfDestructingSolverStorable7 [2024-11-22 01:44:23,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:23,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1579336143, now seen corresponding path program 1 times [2024-11-22 01:44:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:23,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373225524] [2024-11-22 01:44:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:23,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:44:23,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:23,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373225524] [2024-11-22 01:44:23,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373225524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:23,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163578252] [2024-11-22 01:44:23,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:23,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:23,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:23,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:23,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 01:44:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:23,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:23,635 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:23,674 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:23,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:23,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163578252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:23,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:23,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:23,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479547311] [2024-11-22 01:44:23,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:23,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:23,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:23,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:23,677 INFO L87 Difference]: Start difference. First operand 599 states and 979 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:23,807 INFO L93 Difference]: Finished difference Result 1217 states and 2008 transitions. [2024-11-22 01:44:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:44:23,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-11-22 01:44:23,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:23,812 INFO L225 Difference]: With dead ends: 1217 [2024-11-22 01:44:23,812 INFO L226 Difference]: Without dead ends: 614 [2024-11-22 01:44:23,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:23,816 INFO L432 NwaCegarLoop]: 907 mSDtfsCounter, 75 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:23,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2681 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-11-22 01:44:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 599. [2024-11-22 01:44:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 468 states have (on average 1.6495726495726495) internal successors, (772), 491 states have internal predecessors, (772), 102 states have call successors, (102), 27 states have call predecessors, (102), 28 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2024-11-22 01:44:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 974 transitions. [2024-11-22 01:44:23,837 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 974 transitions. Word has length 94 [2024-11-22 01:44:23,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:23,838 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 974 transitions. [2024-11-22 01:44:23,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:23,838 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 974 transitions. [2024-11-22 01:44:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:44:23,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:23,840 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:23,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 01:44:24,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:24,041 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:24,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:24,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1374655759, now seen corresponding path program 1 times [2024-11-22 01:44:24,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:24,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308110806] [2024-11-22 01:44:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:24,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:24,127 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:24,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308110806] [2024-11-22 01:44:24,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308110806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:24,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421196550] [2024-11-22 01:44:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:24,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:24,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:24,130 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:24,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 01:44:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:24,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:24,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:24,496 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:24,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421196550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:24,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:24,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:24,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949507307] [2024-11-22 01:44:24,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:24,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:24,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:24,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:24,498 INFO L87 Difference]: Start difference. First operand 599 states and 974 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:24,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:24,681 INFO L93 Difference]: Finished difference Result 1268 states and 2080 transitions. [2024-11-22 01:44:24,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:24,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2024-11-22 01:44:24,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:24,687 INFO L225 Difference]: With dead ends: 1268 [2024-11-22 01:44:24,687 INFO L226 Difference]: Without dead ends: 695 [2024-11-22 01:44:24,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:24,691 INFO L432 NwaCegarLoop]: 940 mSDtfsCounter, 130 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:24,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2712 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-22 01:44:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 650. [2024-11-22 01:44:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 518 states have (on average 1.6544401544401544) internal successors, (857), 541 states have internal predecessors, (857), 102 states have call successors, (102), 28 states have call predecessors, (102), 29 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2024-11-22 01:44:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1058 transitions. [2024-11-22 01:44:24,715 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1058 transitions. Word has length 96 [2024-11-22 01:44:24,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:24,715 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 1058 transitions. [2024-11-22 01:44:24,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:24,716 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1058 transitions. [2024-11-22 01:44:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:44:24,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:24,717 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:24,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 01:44:24,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 01:44:24,919 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:24,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:24,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1560093727, now seen corresponding path program 1 times [2024-11-22 01:44:24,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:24,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958589094] [2024-11-22 01:44:24,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:24,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:25,080 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:25,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:25,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958589094] [2024-11-22 01:44:25,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958589094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:25,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608021821] [2024-11-22 01:44:25,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:25,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:25,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:25,084 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:25,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 01:44:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:25,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 01:44:25,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:25,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:25,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608021821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:25,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 01:44:25,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214779467] [2024-11-22 01:44:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:25,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:44:25,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:44:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:44:25,516 INFO L87 Difference]: Start difference. First operand 650 states and 1058 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:25,662 INFO L93 Difference]: Finished difference Result 1230 states and 2009 transitions. [2024-11-22 01:44:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:44:25,663 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-11-22 01:44:25,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:25,668 INFO L225 Difference]: With dead ends: 1230 [2024-11-22 01:44:25,668 INFO L226 Difference]: Without dead ends: 672 [2024-11-22 01:44:25,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:44:25,674 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 113 mSDsluCounter, 5389 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6302 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:25,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6302 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:25,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-22 01:44:25,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 650. [2024-11-22 01:44:25,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 518 states have (on average 1.6544401544401544) internal successors, (857), 541 states have internal predecessors, (857), 102 states have call successors, (102), 28 states have call predecessors, (102), 29 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2024-11-22 01:44:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1058 transitions. [2024-11-22 01:44:25,699 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1058 transitions. Word has length 97 [2024-11-22 01:44:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:25,700 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 1058 transitions. [2024-11-22 01:44:25,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1058 transitions. [2024-11-22 01:44:25,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:44:25,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:25,702 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:25,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 01:44:25,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 01:44:25,903 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:25,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:25,904 INFO L85 PathProgramCache]: Analyzing trace with hash -657127167, now seen corresponding path program 1 times [2024-11-22 01:44:25,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:25,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477989842] [2024-11-22 01:44:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:25,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:26,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477989842] [2024-11-22 01:44:26,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477989842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380319067] [2024-11-22 01:44:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:26,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:26,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:26,014 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:26,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 01:44:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:26,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:26,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:26,380 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:44:26,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:26,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380319067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:26,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:26,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:26,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612257330] [2024-11-22 01:44:26,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:26,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:26,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:26,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:26,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:26,383 INFO L87 Difference]: Start difference. First operand 650 states and 1058 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:26,553 INFO L93 Difference]: Finished difference Result 1271 states and 2081 transitions. [2024-11-22 01:44:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:26,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-11-22 01:44:26,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:26,559 INFO L225 Difference]: With dead ends: 1271 [2024-11-22 01:44:26,559 INFO L226 Difference]: Without dead ends: 683 [2024-11-22 01:44:26,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:26,562 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 124 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:26,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2685 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-22 01:44:26,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 650. [2024-11-22 01:44:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 518 states have (on average 1.6447876447876448) internal successors, (852), 541 states have internal predecessors, (852), 102 states have call successors, (102), 28 states have call predecessors, (102), 29 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2024-11-22 01:44:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1053 transitions. [2024-11-22 01:44:26,604 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1053 transitions. Word has length 97 [2024-11-22 01:44:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:26,605 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 1053 transitions. [2024-11-22 01:44:26,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1053 transitions. [2024-11-22 01:44:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:44:26,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:26,608 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:26,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 01:44:26,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 01:44:26,809 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:26,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2131344960, now seen corresponding path program 1 times [2024-11-22 01:44:26,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:26,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726364520] [2024-11-22 01:44:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:26,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726364520] [2024-11-22 01:44:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726364520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:26,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381567351] [2024-11-22 01:44:26,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:26,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:26,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:26,923 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:26,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 01:44:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:27,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:44:27,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:27,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:27,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:27,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381567351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:27,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:27,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-22 01:44:27,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512694414] [2024-11-22 01:44:27,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:27,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:27,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:27,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:44:27,319 INFO L87 Difference]: Start difference. First operand 650 states and 1053 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:27,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:27,426 INFO L93 Difference]: Finished difference Result 1165 states and 1901 transitions. [2024-11-22 01:44:27,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2024-11-22 01:44:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:27,434 INFO L225 Difference]: With dead ends: 1165 [2024-11-22 01:44:27,434 INFO L226 Difference]: Without dead ends: 674 [2024-11-22 01:44:27,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:27,438 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 86 mSDsluCounter, 4551 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:27,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5477 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-22 01:44:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 669. [2024-11-22 01:44:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 534 states have (on average 1.6441947565543071) internal successors, (878), 559 states have internal predecessors, (878), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:27,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1083 transitions. [2024-11-22 01:44:27,462 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1083 transitions. Word has length 97 [2024-11-22 01:44:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:27,462 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 1083 transitions. [2024-11-22 01:44:27,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1083 transitions. [2024-11-22 01:44:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:44:27,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:27,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:27,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:27,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 01:44:27,666 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:27,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:27,666 INFO L85 PathProgramCache]: Analyzing trace with hash -532419301, now seen corresponding path program 1 times [2024-11-22 01:44:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355985403] [2024-11-22 01:44:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:27,751 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:27,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355985403] [2024-11-22 01:44:27,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355985403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:27,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453239681] [2024-11-22 01:44:27,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:27,755 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:27,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 01:44:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:28,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:44:28,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:28,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:28,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453239681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:28,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:28,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-22 01:44:28,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892738024] [2024-11-22 01:44:28,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:28,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:28,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:28,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:44:28,198 INFO L87 Difference]: Start difference. First operand 669 states and 1083 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:28,295 INFO L93 Difference]: Finished difference Result 1195 states and 1952 transitions. [2024-11-22 01:44:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:28,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-22 01:44:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:28,312 INFO L225 Difference]: With dead ends: 1195 [2024-11-22 01:44:28,313 INFO L226 Difference]: Without dead ends: 704 [2024-11-22 01:44:28,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:28,322 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 95 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5467 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:28,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5467 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-22 01:44:28,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 669. [2024-11-22 01:44:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 534 states have (on average 1.6441947565543071) internal successors, (878), 559 states have internal predecessors, (878), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:28,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1083 transitions. [2024-11-22 01:44:28,351 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1083 transitions. Word has length 98 [2024-11-22 01:44:28,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:28,352 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 1083 transitions. [2024-11-22 01:44:28,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1083 transitions. [2024-11-22 01:44:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:44:28,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:28,355 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:28,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 01:44:28,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:28,556 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:28,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:28,556 INFO L85 PathProgramCache]: Analyzing trace with hash -710202981, now seen corresponding path program 1 times [2024-11-22 01:44:28,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:28,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218322006] [2024-11-22 01:44:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:44:28,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:28,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218322006] [2024-11-22 01:44:28,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218322006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:28,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903590682] [2024-11-22 01:44:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:28,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:28,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:28,641 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:28,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 01:44:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:28,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 01:44:28,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:29,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:29,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903590682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:29,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:29,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-22 01:44:29,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909281319] [2024-11-22 01:44:29,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:29,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:44:29,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:29,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:44:29,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:29,031 INFO L87 Difference]: Start difference. First operand 669 states and 1083 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:29,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:29,161 INFO L93 Difference]: Finished difference Result 1180 states and 1926 transitions. [2024-11-22 01:44:29,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:44:29,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-22 01:44:29,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:29,167 INFO L225 Difference]: With dead ends: 1180 [2024-11-22 01:44:29,167 INFO L226 Difference]: Without dead ends: 689 [2024-11-22 01:44:29,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:44:29,171 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 113 mSDsluCounter, 5395 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6310 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:29,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6310 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-22 01:44:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 669. [2024-11-22 01:44:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 534 states have (on average 1.6441947565543071) internal successors, (878), 559 states have internal predecessors, (878), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1083 transitions. [2024-11-22 01:44:29,192 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1083 transitions. Word has length 98 [2024-11-22 01:44:29,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:29,192 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 1083 transitions. [2024-11-22 01:44:29,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1083 transitions. [2024-11-22 01:44:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:44:29,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:29,195 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:29,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:29,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 01:44:29,395 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:29,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:29,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1528045300, now seen corresponding path program 1 times [2024-11-22 01:44:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324554455] [2024-11-22 01:44:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:29,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:29,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324554455] [2024-11-22 01:44:29,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324554455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:29,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573599077] [2024-11-22 01:44:29,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:29,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:29,507 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:29,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 01:44:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:29,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:29,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:44:29,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:29,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573599077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:29,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:29,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:29,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652252235] [2024-11-22 01:44:29,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:29,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:29,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:29,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:29,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:29,827 INFO L87 Difference]: Start difference. First operand 669 states and 1083 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:29,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:29,883 INFO L93 Difference]: Finished difference Result 1232 states and 2011 transitions. [2024-11-22 01:44:29,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:29,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-11-22 01:44:29,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:29,891 INFO L225 Difference]: With dead ends: 1232 [2024-11-22 01:44:29,891 INFO L226 Difference]: Without dead ends: 669 [2024-11-22 01:44:29,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:29,894 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 13 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:29,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2759 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-22 01:44:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2024-11-22 01:44:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 534 states have (on average 1.6367041198501873) internal successors, (874), 559 states have internal predecessors, (874), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:29,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1079 transitions. [2024-11-22 01:44:29,914 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1079 transitions. Word has length 98 [2024-11-22 01:44:29,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:29,915 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 1079 transitions. [2024-11-22 01:44:29,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:29,915 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1079 transitions. [2024-11-22 01:44:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 01:44:29,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:29,917 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:29,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 01:44:30,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 01:44:30,118 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:30,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash 630742072, now seen corresponding path program 1 times [2024-11-22 01:44:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:30,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014029345] [2024-11-22 01:44:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:30,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:30,199 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:44:30,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:30,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014029345] [2024-11-22 01:44:30,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014029345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:30,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216740825] [2024-11-22 01:44:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:30,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:30,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:30,203 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:30,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 01:44:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:30,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 01:44:30,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:30,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:30,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216740825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:30,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:30,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-22 01:44:30,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383318307] [2024-11-22 01:44:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:30,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:30,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:30,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:30,540 INFO L87 Difference]: Start difference. First operand 669 states and 1079 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:30,599 INFO L93 Difference]: Finished difference Result 1276 states and 2079 transitions. [2024-11-22 01:44:30,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:44:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-11-22 01:44:30,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:30,621 INFO L225 Difference]: With dead ends: 1276 [2024-11-22 01:44:30,622 INFO L226 Difference]: Without dead ends: 693 [2024-11-22 01:44:30,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:30,626 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 7 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:30,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2732 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-22 01:44:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-11-22 01:44:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 558 states have (on average 1.6164874551971327) internal successors, (902), 583 states have internal predecessors, (902), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1107 transitions. [2024-11-22 01:44:30,650 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1107 transitions. Word has length 99 [2024-11-22 01:44:30,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:30,650 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1107 transitions. [2024-11-22 01:44:30,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:44:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1107 transitions. [2024-11-22 01:44:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 01:44:30,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:30,653 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:30,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 01:44:30,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-22 01:44:30,854 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:30,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:30,854 INFO L85 PathProgramCache]: Analyzing trace with hash 786010993, now seen corresponding path program 1 times [2024-11-22 01:44:30,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:30,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170589320] [2024-11-22 01:44:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-22 01:44:30,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:30,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170589320] [2024-11-22 01:44:30,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170589320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:30,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789065786] [2024-11-22 01:44:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:30,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:30,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:30,947 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:30,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 01:44:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:31,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 01:44:31,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:31,347 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:31,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789065786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:31,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:31,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-22 01:44:31,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092069832] [2024-11-22 01:44:31,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:31,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:44:31,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:31,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:44:31,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:31,349 INFO L87 Difference]: Start difference. First operand 693 states and 1107 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:31,485 INFO L93 Difference]: Finished difference Result 1210 states and 1958 transitions. [2024-11-22 01:44:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:44:31,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 100 [2024-11-22 01:44:31,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:31,491 INFO L225 Difference]: With dead ends: 1210 [2024-11-22 01:44:31,491 INFO L226 Difference]: Without dead ends: 719 [2024-11-22 01:44:31,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:44:31,494 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 119 mSDsluCounter, 5357 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:31,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6266 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-22 01:44:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 693. [2024-11-22 01:44:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 558 states have (on average 1.6164874551971327) internal successors, (902), 583 states have internal predecessors, (902), 103 states have call successors, (103), 28 states have call predecessors, (103), 31 states have return successors, (102), 95 states have call predecessors, (102), 98 states have call successors, (102) [2024-11-22 01:44:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1107 transitions. [2024-11-22 01:44:31,519 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1107 transitions. Word has length 100 [2024-11-22 01:44:31,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:31,520 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1107 transitions. [2024-11-22 01:44:31,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1107 transitions. [2024-11-22 01:44:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 01:44:31,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:31,522 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:31,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-22 01:44:31,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 01:44:31,723 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:31,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1929514969, now seen corresponding path program 1 times [2024-11-22 01:44:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396113164] [2024-11-22 01:44:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:31,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:31,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396113164] [2024-11-22 01:44:31,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396113164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251223856] [2024-11-22 01:44:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:31,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:31,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:31,810 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:31,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 01:44:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:32,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:44:32,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:44:32,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:32,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251223856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:32,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:32,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2024-11-22 01:44:32,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692038409] [2024-11-22 01:44:32,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:32,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:32,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:32,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:32,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:44:32,569 INFO L87 Difference]: Start difference. First operand 693 states and 1107 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:35,700 INFO L93 Difference]: Finished difference Result 2256 states and 3727 transitions. [2024-11-22 01:44:35,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 100 [2024-11-22 01:44:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:35,717 INFO L225 Difference]: With dead ends: 2256 [2024-11-22 01:44:35,717 INFO L226 Difference]: Without dead ends: 1770 [2024-11-22 01:44:35,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:35,724 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 2798 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 3921 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2979 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:35,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2979 Valid, 1766 Invalid, 4424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3921 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-22 01:44:35,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-22 01:44:35,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1583. [2024-11-22 01:44:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1261 states have (on average 1.6582077716098336) internal successors, (2091), 1304 states have internal predecessors, (2091), 256 states have call successors, (256), 60 states have call predecessors, (256), 65 states have return successors, (265), 233 states have call predecessors, (265), 251 states have call successors, (265) [2024-11-22 01:44:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2612 transitions. [2024-11-22 01:44:35,796 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2612 transitions. Word has length 100 [2024-11-22 01:44:35,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:35,796 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2612 transitions. [2024-11-22 01:44:35,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:44:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2612 transitions. [2024-11-22 01:44:35,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-22 01:44:35,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:35,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:35,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-22 01:44:36,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:36,002 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:36,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:36,003 INFO L85 PathProgramCache]: Analyzing trace with hash 904301745, now seen corresponding path program 1 times [2024-11-22 01:44:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202123569] [2024-11-22 01:44:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:36,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:36,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:36,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202123569] [2024-11-22 01:44:36,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202123569] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:36,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711389025] [2024-11-22 01:44:36,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:36,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:36,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:36,168 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:36,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 01:44:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:36,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 01:44:36,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:44:36,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:36,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711389025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:36,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:36,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-22 01:44:36,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83021909] [2024-11-22 01:44:36,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:36,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:44:36,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:44:36,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:36,745 INFO L87 Difference]: Start difference. First operand 1583 states and 2612 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:44:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:39,571 INFO L93 Difference]: Finished difference Result 4235 states and 7042 transitions. [2024-11-22 01:44:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 01:44:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 138 [2024-11-22 01:44:39,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:39,592 INFO L225 Difference]: With dead ends: 4235 [2024-11-22 01:44:39,592 INFO L226 Difference]: Without dead ends: 2696 [2024-11-22 01:44:39,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-22 01:44:39,602 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1703 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 5099 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 5352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 5099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:39,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 2289 Invalid, 5352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 5099 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-22 01:44:39,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2696 states. [2024-11-22 01:44:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2696 to 2476. [2024-11-22 01:44:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1947 states have (on average 1.6384180790960452) internal successors, (3190), 1999 states have internal predecessors, (3190), 420 states have call successors, (420), 89 states have call predecessors, (420), 108 states have return successors, (463), 398 states have call predecessors, (463), 415 states have call successors, (463) [2024-11-22 01:44:39,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4073 transitions. [2024-11-22 01:44:39,733 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4073 transitions. Word has length 138 [2024-11-22 01:44:39,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:39,733 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4073 transitions. [2024-11-22 01:44:39,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-22 01:44:39,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4073 transitions. [2024-11-22 01:44:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:44:39,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:39,739 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:39,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-22 01:44:39,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:39,940 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:39,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1250053609, now seen corresponding path program 1 times [2024-11-22 01:44:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:39,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191371025] [2024-11-22 01:44:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:39,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-22 01:44:40,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:40,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191371025] [2024-11-22 01:44:40,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191371025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:40,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8299035] [2024-11-22 01:44:40,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:40,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:40,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:40,049 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:40,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 01:44:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:40,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 2077 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:44:40,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:44:40,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8299035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:40,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:40,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-22 01:44:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919446607] [2024-11-22 01:44:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:40,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:44:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:44:40,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:40,553 INFO L87 Difference]: Start difference. First operand 2476 states and 4073 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:44:40,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:40,681 INFO L93 Difference]: Finished difference Result 4759 states and 7885 transitions. [2024-11-22 01:44:40,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:40,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2024-11-22 01:44:40,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:40,699 INFO L225 Difference]: With dead ends: 4759 [2024-11-22 01:44:40,699 INFO L226 Difference]: Without dead ends: 2491 [2024-11-22 01:44:40,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:40,711 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 0 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:40,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3704 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:40,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2024-11-22 01:44:40,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2485. [2024-11-22 01:44:40,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 1956 states have (on average 1.635480572597137) internal successors, (3199), 2008 states have internal predecessors, (3199), 420 states have call successors, (420), 89 states have call predecessors, (420), 108 states have return successors, (463), 398 states have call predecessors, (463), 415 states have call successors, (463) [2024-11-22 01:44:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 4082 transitions. [2024-11-22 01:44:40,819 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 4082 transitions. Word has length 139 [2024-11-22 01:44:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:40,820 INFO L471 AbstractCegarLoop]: Abstraction has 2485 states and 4082 transitions. [2024-11-22 01:44:40,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:44:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 4082 transitions. [2024-11-22 01:44:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:44:40,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:40,826 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:40,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:41,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:41,030 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:41,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:41,030 INFO L85 PathProgramCache]: Analyzing trace with hash 834819641, now seen corresponding path program 1 times [2024-11-22 01:44:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053349570] [2024-11-22 01:44:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:41,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:41,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053349570] [2024-11-22 01:44:41,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053349570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766220480] [2024-11-22 01:44:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:41,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:41,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:41,150 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:41,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 01:44:41,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:41,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 2084 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:44:41,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:44:41,647 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:41,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766220480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:41,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:41,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-22 01:44:41,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557905317] [2024-11-22 01:44:41,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:41,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:44:41,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:41,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:44:41,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:41,650 INFO L87 Difference]: Start difference. First operand 2485 states and 4082 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-22 01:44:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:42,126 INFO L93 Difference]: Finished difference Result 2600 states and 4272 transitions. [2024-11-22 01:44:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:42,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 142 [2024-11-22 01:44:42,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:42,144 INFO L225 Difference]: With dead ends: 2600 [2024-11-22 01:44:42,145 INFO L226 Difference]: Without dead ends: 2585 [2024-11-22 01:44:42,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:42,149 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 893 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:42,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2375 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:44:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2024-11-22 01:44:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2494. [2024-11-22 01:44:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 1965 states have (on average 1.6325699745547073) internal successors, (3208), 2017 states have internal predecessors, (3208), 420 states have call successors, (420), 89 states have call predecessors, (420), 108 states have return successors, (463), 398 states have call predecessors, (463), 415 states have call successors, (463) [2024-11-22 01:44:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 4091 transitions. [2024-11-22 01:44:42,266 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 4091 transitions. Word has length 142 [2024-11-22 01:44:42,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:42,266 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 4091 transitions. [2024-11-22 01:44:42,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-22 01:44:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 4091 transitions. [2024-11-22 01:44:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-22 01:44:42,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:42,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:42,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:42,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:42,473 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1096816748, now seen corresponding path program 1 times [2024-11-22 01:44:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:42,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842014582] [2024-11-22 01:44:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:42,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:42,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842014582] [2024-11-22 01:44:42,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842014582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:42,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964969015] [2024-11-22 01:44:42,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:42,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:42,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:42,580 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:42,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 01:44:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:42,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:44:42,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:44:43,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964969015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2024-11-22 01:44:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038210273] [2024-11-22 01:44:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:44:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:44:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:44:43,039 INFO L87 Difference]: Start difference. First operand 2494 states and 4091 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:44:43,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:43,391 INFO L93 Difference]: Finished difference Result 2632 states and 4283 transitions. [2024-11-22 01:44:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:44:43,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-11-22 01:44:43,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:43,405 INFO L225 Difference]: With dead ends: 2632 [2024-11-22 01:44:43,405 INFO L226 Difference]: Without dead ends: 2617 [2024-11-22 01:44:43,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:43,407 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 865 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:43,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3652 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:44:43,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2024-11-22 01:44:43,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2596. [2024-11-22 01:44:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2596 states, 2043 states have (on average 1.6231032794909448) internal successors, (3316), 2095 states have internal predecessors, (3316), 436 states have call successors, (436), 99 states have call predecessors, (436), 116 states have return successors, (482), 412 states have call predecessors, (482), 431 states have call successors, (482) [2024-11-22 01:44:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2596 states to 2596 states and 4234 transitions. [2024-11-22 01:44:43,530 INFO L78 Accepts]: Start accepts. Automaton has 2596 states and 4234 transitions. Word has length 148 [2024-11-22 01:44:43,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:43,531 INFO L471 AbstractCegarLoop]: Abstraction has 2596 states and 4234 transitions. [2024-11-22 01:44:43,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-22 01:44:43,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2596 states and 4234 transitions. [2024-11-22 01:44:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 01:44:43,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:43,539 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:43,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-22 01:44:43,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:43,740 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:43,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1251734787, now seen corresponding path program 1 times [2024-11-22 01:44:43,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:43,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544591309] [2024-11-22 01:44:43,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:43,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:43,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:43,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544591309] [2024-11-22 01:44:43,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544591309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:43,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312402142] [2024-11-22 01:44:43,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:43,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:43,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:43,856 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:43,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 01:44:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:44,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 01:44:44,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:44:44,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:44,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312402142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:44,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:44,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-22 01:44:44,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757320277] [2024-11-22 01:44:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:44,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:44,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:44,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:44:44,252 INFO L87 Difference]: Start difference. First operand 2596 states and 4234 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:44,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:44,396 INFO L93 Difference]: Finished difference Result 5166 states and 8438 transitions. [2024-11-22 01:44:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:44,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-22 01:44:44,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:44,411 INFO L225 Difference]: With dead ends: 5166 [2024-11-22 01:44:44,411 INFO L226 Difference]: Without dead ends: 2565 [2024-11-22 01:44:44,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:44:44,423 INFO L432 NwaCegarLoop]: 923 mSDtfsCounter, 7 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2762 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:44,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2762 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:44,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-22 01:44:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2565. [2024-11-22 01:44:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2015 states have (on average 1.6228287841191067) internal successors, (3270), 2065 states have internal predecessors, (3270), 435 states have call successors, (435), 99 states have call predecessors, (435), 114 states have return successors, (479), 411 states have call predecessors, (479), 430 states have call successors, (479) [2024-11-22 01:44:44,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 4184 transitions. [2024-11-22 01:44:44,539 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 4184 transitions. Word has length 159 [2024-11-22 01:44:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:44,541 INFO L471 AbstractCegarLoop]: Abstraction has 2565 states and 4184 transitions. [2024-11-22 01:44:44,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 4184 transitions. [2024-11-22 01:44:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 01:44:44,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:44,546 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:44,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-22 01:44:44,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:44,748 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:44,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:44,748 INFO L85 PathProgramCache]: Analyzing trace with hash 74137928, now seen corresponding path program 1 times [2024-11-22 01:44:44,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:44,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653677803] [2024-11-22 01:44:44,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:44,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:44:44,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653677803] [2024-11-22 01:44:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653677803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504833204] [2024-11-22 01:44:44,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:44,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:44,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:44,932 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:44,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 01:44:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:45,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-22 01:44:45,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:45,405 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:44:45,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:45,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504833204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:45,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:45,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2024-11-22 01:44:45,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137418345] [2024-11-22 01:44:45,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:45,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:45,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:45,408 INFO L87 Difference]: Start difference. First operand 2565 states and 4184 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:45,607 INFO L93 Difference]: Finished difference Result 5099 states and 8332 transitions. [2024-11-22 01:44:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2024-11-22 01:44:45,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:45,629 INFO L225 Difference]: With dead ends: 5099 [2024-11-22 01:44:45,629 INFO L226 Difference]: Without dead ends: 2565 [2024-11-22 01:44:45,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:44:45,642 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 119 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5520 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:45,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5520 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-22 01:44:45,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2544. [2024-11-22 01:44:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1994 states have (on average 1.6228686058174524) internal successors, (3236), 2044 states have internal predecessors, (3236), 435 states have call successors, (435), 99 states have call predecessors, (435), 114 states have return successors, (479), 411 states have call predecessors, (479), 430 states have call successors, (479) [2024-11-22 01:44:45,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 4150 transitions. [2024-11-22 01:44:45,747 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 4150 transitions. Word has length 161 [2024-11-22 01:44:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:45,747 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 4150 transitions. [2024-11-22 01:44:45,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:45,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 4150 transitions. [2024-11-22 01:44:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 01:44:45,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:45,756 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:45,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:45,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-22 01:44:45,960 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:45,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:45,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1517152867, now seen corresponding path program 1 times [2024-11-22 01:44:45,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:45,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522189448] [2024-11-22 01:44:45,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:45,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522189448] [2024-11-22 01:44:46,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522189448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360004578] [2024-11-22 01:44:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:46,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:46,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:46,150 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:46,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 01:44:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:46,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 2146 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:46,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:44:46,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:46,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360004578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:46,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:46,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-22 01:44:46,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105619036] [2024-11-22 01:44:46,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:46,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:46,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:46,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:46,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:44:46,537 INFO L87 Difference]: Start difference. First operand 2544 states and 4150 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:46,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:46,733 INFO L93 Difference]: Finished difference Result 5081 states and 8302 transitions. [2024-11-22 01:44:46,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:46,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-11-22 01:44:46,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:46,749 INFO L225 Difference]: With dead ends: 5081 [2024-11-22 01:44:46,749 INFO L226 Difference]: Without dead ends: 2568 [2024-11-22 01:44:46,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:44:46,757 INFO L432 NwaCegarLoop]: 906 mSDtfsCounter, 128 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2641 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:46,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2641 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2024-11-22 01:44:46,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2544. [2024-11-22 01:44:46,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1994 states have (on average 1.6223671013039118) internal successors, (3235), 2044 states have internal predecessors, (3235), 435 states have call successors, (435), 99 states have call predecessors, (435), 114 states have return successors, (479), 411 states have call predecessors, (479), 430 states have call successors, (479) [2024-11-22 01:44:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 4149 transitions. [2024-11-22 01:44:46,869 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 4149 transitions. Word has length 163 [2024-11-22 01:44:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:46,870 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 4149 transitions. [2024-11-22 01:44:46,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 4149 transitions. [2024-11-22 01:44:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 01:44:46,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:46,876 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:46,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-22 01:44:47,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 01:44:47,077 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:47,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1554375247, now seen corresponding path program 1 times [2024-11-22 01:44:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483365398] [2024-11-22 01:44:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:47,187 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:44:47,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483365398] [2024-11-22 01:44:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483365398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:44:47,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170587252] [2024-11-22 01:44:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:47,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:47,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:47,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:44:47,190 INFO L87 Difference]: Start difference. First operand 2544 states and 4149 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:47,298 INFO L93 Difference]: Finished difference Result 5016 states and 8211 transitions. [2024-11-22 01:44:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:47,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2024-11-22 01:44:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:47,313 INFO L225 Difference]: With dead ends: 5016 [2024-11-22 01:44:47,313 INFO L226 Difference]: Without dead ends: 2504 [2024-11-22 01:44:47,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:44:47,321 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 8 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:47,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2759 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2024-11-22 01:44:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2504. [2024-11-22 01:44:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 1957 states have (on average 1.6208482370975983) internal successors, (3172), 2005 states have internal predecessors, (3172), 434 states have call successors, (434), 99 states have call predecessors, (434), 112 states have return successors, (476), 410 states have call predecessors, (476), 429 states have call successors, (476) [2024-11-22 01:44:47,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 4082 transitions. [2024-11-22 01:44:47,453 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 4082 transitions. Word has length 164 [2024-11-22 01:44:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:47,453 INFO L471 AbstractCegarLoop]: Abstraction has 2504 states and 4082 transitions. [2024-11-22 01:44:47,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:44:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 4082 transitions. [2024-11-22 01:44:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-22 01:44:47,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:47,458 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:47,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 01:44:47,459 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:47,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash 497453547, now seen corresponding path program 1 times [2024-11-22 01:44:47,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:47,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123394159] [2024-11-22 01:44:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:47,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 01:44:47,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:47,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123394159] [2024-11-22 01:44:47,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123394159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:47,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:47,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:44:47,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875059442] [2024-11-22 01:44:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:47,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:44:47,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:47,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:44:47,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:44:47,646 INFO L87 Difference]: Start difference. First operand 2504 states and 4082 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:47,774 INFO L93 Difference]: Finished difference Result 4919 states and 8050 transitions. [2024-11-22 01:44:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:47,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 165 [2024-11-22 01:44:47,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:47,794 INFO L225 Difference]: With dead ends: 4919 [2024-11-22 01:44:47,794 INFO L226 Difference]: Without dead ends: 2490 [2024-11-22 01:44:47,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:44:47,803 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 88 mSDsluCounter, 4442 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:47,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 5346 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:44:47,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-22 01:44:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2490. [2024-11-22 01:44:47,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 1943 states have (on average 1.6196603190941843) internal successors, (3147), 1991 states have internal predecessors, (3147), 434 states have call successors, (434), 99 states have call predecessors, (434), 112 states have return successors, (476), 410 states have call predecessors, (476), 429 states have call successors, (476) [2024-11-22 01:44:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 4057 transitions. [2024-11-22 01:44:47,901 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 4057 transitions. Word has length 165 [2024-11-22 01:44:47,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:47,902 INFO L471 AbstractCegarLoop]: Abstraction has 2490 states and 4057 transitions. [2024-11-22 01:44:47,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:47,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 4057 transitions. [2024-11-22 01:44:47,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-22 01:44:47,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:47,907 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:47,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 01:44:47,907 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:47,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1877201480, now seen corresponding path program 1 times [2024-11-22 01:44:47,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:47,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751514360] [2024-11-22 01:44:47,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:47,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:48,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:48,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751514360] [2024-11-22 01:44:48,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751514360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:48,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:48,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:44:48,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865214794] [2024-11-22 01:44:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:48,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:44:48,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:48,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:44:48,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:48,243 INFO L87 Difference]: Start difference. First operand 2490 states and 4057 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:48,464 INFO L93 Difference]: Finished difference Result 4946 states and 8078 transitions. [2024-11-22 01:44:48,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 01:44:48,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 166 [2024-11-22 01:44:48,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:48,478 INFO L225 Difference]: With dead ends: 4946 [2024-11-22 01:44:48,478 INFO L226 Difference]: Without dead ends: 2481 [2024-11-22 01:44:48,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:44:48,486 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 45 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7729 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:48,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7729 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2024-11-22 01:44:48,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2481. [2024-11-22 01:44:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 1934 states have (on average 1.6194415718717683) internal successors, (3132), 1982 states have internal predecessors, (3132), 434 states have call successors, (434), 99 states have call predecessors, (434), 112 states have return successors, (476), 410 states have call predecessors, (476), 429 states have call successors, (476) [2024-11-22 01:44:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 4042 transitions. [2024-11-22 01:44:48,585 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 4042 transitions. Word has length 166 [2024-11-22 01:44:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:48,586 INFO L471 AbstractCegarLoop]: Abstraction has 2481 states and 4042 transitions. [2024-11-22 01:44:48,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 4042 transitions. [2024-11-22 01:44:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 01:44:48,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:48,591 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:48,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 01:44:48,591 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:48,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash -136764702, now seen corresponding path program 1 times [2024-11-22 01:44:48,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:48,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867705943] [2024-11-22 01:44:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:48,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:44:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867705943] [2024-11-22 01:44:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867705943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:48,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:44:48,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13222081] [2024-11-22 01:44:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:48,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:44:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:44:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:48,976 INFO L87 Difference]: Start difference. First operand 2481 states and 4042 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:49,171 INFO L93 Difference]: Finished difference Result 4878 states and 7984 transitions. [2024-11-22 01:44:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:44:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 167 [2024-11-22 01:44:49,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:49,186 INFO L225 Difference]: With dead ends: 4878 [2024-11-22 01:44:49,187 INFO L226 Difference]: Without dead ends: 2475 [2024-11-22 01:44:49,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:44:49,195 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 31 mSDsluCounter, 6067 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6940 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:49,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 6940 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-22 01:44:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2475. [2024-11-22 01:44:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 1928 states have (on average 1.620850622406639) internal successors, (3125), 1976 states have internal predecessors, (3125), 434 states have call successors, (434), 99 states have call predecessors, (434), 112 states have return successors, (476), 410 states have call predecessors, (476), 429 states have call successors, (476) [2024-11-22 01:44:49,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 4035 transitions. [2024-11-22 01:44:49,297 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 4035 transitions. Word has length 167 [2024-11-22 01:44:49,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:49,297 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 4035 transitions. [2024-11-22 01:44:49,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:44:49,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 4035 transitions. [2024-11-22 01:44:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 01:44:49,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:49,302 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:49,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 01:44:49,302 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:49,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1067714716, now seen corresponding path program 1 times [2024-11-22 01:44:49,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:49,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096477574] [2024-11-22 01:44:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:49,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:44:49,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096477574] [2024-11-22 01:44:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096477574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:44:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705213524] [2024-11-22 01:44:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:49,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:44:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:44:49,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:49,569 INFO L87 Difference]: Start difference. First operand 2475 states and 4035 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:44:52,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:52,077 INFO L93 Difference]: Finished difference Result 6960 states and 11555 transitions. [2024-11-22 01:44:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:52,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 167 [2024-11-22 01:44:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:52,108 INFO L225 Difference]: With dead ends: 6960 [2024-11-22 01:44:52,108 INFO L226 Difference]: Without dead ends: 4575 [2024-11-22 01:44:52,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:52,121 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 3262 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 4305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:52,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 1781 Invalid, 4305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-22 01:44:52,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2024-11-22 01:44:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4186. [2024-11-22 01:44:52,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4186 states, 3237 states have (on average 1.6092060549891876) internal successors, (5209), 3324 states have internal predecessors, (5209), 754 states have call successors, (754), 162 states have call predecessors, (754), 194 states have return successors, (859), 726 states have call predecessors, (859), 749 states have call successors, (859) [2024-11-22 01:44:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4186 states to 4186 states and 6822 transitions. [2024-11-22 01:44:52,364 INFO L78 Accepts]: Start accepts. Automaton has 4186 states and 6822 transitions. Word has length 167 [2024-11-22 01:44:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:52,365 INFO L471 AbstractCegarLoop]: Abstraction has 4186 states and 6822 transitions. [2024-11-22 01:44:52,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:44:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4186 states and 6822 transitions. [2024-11-22 01:44:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 01:44:52,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:52,371 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:52,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 01:44:52,371 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:52,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash -485567063, now seen corresponding path program 1 times [2024-11-22 01:44:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:52,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264806635] [2024-11-22 01:44:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:52,582 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:44:52,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:52,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264806635] [2024-11-22 01:44:52,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264806635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:52,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:52,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:44:52,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443735229] [2024-11-22 01:44:52,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:52,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:44:52,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:44:52,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:52,586 INFO L87 Difference]: Start difference. First operand 4186 states and 6822 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:44:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:55,293 INFO L93 Difference]: Finished difference Result 12986 states and 21599 transitions. [2024-11-22 01:44:55,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:55,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 168 [2024-11-22 01:44:55,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:55,396 INFO L225 Difference]: With dead ends: 12986 [2024-11-22 01:44:55,396 INFO L226 Difference]: Without dead ends: 8894 [2024-11-22 01:44:55,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:55,421 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 3275 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 4289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 3375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:55,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 1794 Invalid, 4289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 3375 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 01:44:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8894 states. [2024-11-22 01:44:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8894 to 8118. [2024-11-22 01:44:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8118 states, 6218 states have (on average 1.6001929880990673) internal successors, (9950), 6398 states have internal predecessors, (9950), 1521 states have call successors, (1521), 288 states have call predecessors, (1521), 378 states have return successors, (1820), 1499 states have call predecessors, (1820), 1516 states have call successors, (1820) [2024-11-22 01:44:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8118 states to 8118 states and 13291 transitions. [2024-11-22 01:44:56,008 INFO L78 Accepts]: Start accepts. Automaton has 8118 states and 13291 transitions. Word has length 168 [2024-11-22 01:44:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:56,008 INFO L471 AbstractCegarLoop]: Abstraction has 8118 states and 13291 transitions. [2024-11-22 01:44:56,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:44:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8118 states and 13291 transitions. [2024-11-22 01:44:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-22 01:44:56,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:56,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:44:56,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 01:44:56,015 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:56,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1902324897, now seen corresponding path program 1 times [2024-11-22 01:44:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:56,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499756196] [2024-11-22 01:44:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:44:56,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499756196] [2024-11-22 01:44:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499756196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:56,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:44:56,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:44:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128143055] [2024-11-22 01:44:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:56,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:44:56,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:56,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:44:56,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:44:56,217 INFO L87 Difference]: Start difference. First operand 8118 states and 13291 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:44:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:59,309 INFO L93 Difference]: Finished difference Result 27495 states and 46093 transitions. [2024-11-22 01:44:59,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:44:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 169 [2024-11-22 01:44:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:59,399 INFO L225 Difference]: With dead ends: 27495 [2024-11-22 01:44:59,400 INFO L226 Difference]: Without dead ends: 19479 [2024-11-22 01:44:59,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:44:59,432 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 3287 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 4300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 916 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:59,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 1815 Invalid, 4300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [916 Valid, 3384 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-22 01:44:59,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19479 states. [2024-11-22 01:45:00,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19479 to 17502. [2024-11-22 01:45:00,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17502 states, 13268 states have (on average 1.593608682544468) internal successors, (21144), 13676 states have internal predecessors, (21144), 3426 states have call successors, (3426), 540 states have call predecessors, (3426), 807 states have return successors, (4334), 3460 states have call predecessors, (4334), 3421 states have call successors, (4334) [2024-11-22 01:45:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17502 states to 17502 states and 28904 transitions. [2024-11-22 01:45:00,643 INFO L78 Accepts]: Start accepts. Automaton has 17502 states and 28904 transitions. Word has length 169 [2024-11-22 01:45:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:45:00,643 INFO L471 AbstractCegarLoop]: Abstraction has 17502 states and 28904 transitions. [2024-11-22 01:45:00,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:45:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 17502 states and 28904 transitions. [2024-11-22 01:45:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 01:45:00,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:45:00,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:45:00,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 01:45:00,652 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:45:00,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:45:00,652 INFO L85 PathProgramCache]: Analyzing trace with hash -860643388, now seen corresponding path program 1 times [2024-11-22 01:45:00,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:45:00,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163530593] [2024-11-22 01:45:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:45:00,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:45:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:45:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:45:00,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:45:00,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163530593] [2024-11-22 01:45:00,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163530593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:45:00,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:45:00,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:45:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157601870] [2024-11-22 01:45:00,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:45:00,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:45:00,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:45:00,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:45:00,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:45:00,892 INFO L87 Difference]: Start difference. First operand 17502 states and 28904 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:45:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:45:05,293 INFO L93 Difference]: Finished difference Result 64088 states and 108710 transitions. [2024-11-22 01:45:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:45:05,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 170 [2024-11-22 01:45:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:45:05,559 INFO L225 Difference]: With dead ends: 64088 [2024-11-22 01:45:05,559 INFO L226 Difference]: Without dead ends: 46704 [2024-11-22 01:45:05,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:45:05,667 INFO L432 NwaCegarLoop]: 718 mSDtfsCounter, 3299 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 3393 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 3393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:45:05,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 1836 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 3393 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 01:45:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46704 states. [2024-11-22 01:45:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46704 to 40978. [2024-11-22 01:45:08,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40978 states, 30766 states have (on average 1.5892218682961712) internal successors, (48894), 31750 states have internal predecessors, (48894), 8355 states have call successors, (8355), 1044 states have call predecessors, (8355), 1856 states have return successors, (11198), 8641 states have call predecessors, (11198), 8350 states have call successors, (11198) [2024-11-22 01:45:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40978 states to 40978 states and 68447 transitions. [2024-11-22 01:45:08,722 INFO L78 Accepts]: Start accepts. Automaton has 40978 states and 68447 transitions. Word has length 170 [2024-11-22 01:45:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:45:08,723 INFO L471 AbstractCegarLoop]: Abstraction has 40978 states and 68447 transitions. [2024-11-22 01:45:08,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:45:08,723 INFO L276 IsEmpty]: Start isEmpty. Operand 40978 states and 68447 transitions. [2024-11-22 01:45:08,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-22 01:45:08,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:45:08,733 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:45:08,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 01:45:08,733 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:45:08,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:45:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash -916753574, now seen corresponding path program 1 times [2024-11-22 01:45:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:45:08,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914755538] [2024-11-22 01:45:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:45:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:45:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:45:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-22 01:45:08,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:45:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914755538] [2024-11-22 01:45:08,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914755538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:45:08,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:45:08,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:45:08,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104124683] [2024-11-22 01:45:08,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:45:08,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:45:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:45:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:45:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:45:08,946 INFO L87 Difference]: Start difference. First operand 40978 states and 68447 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-22 01:45:18,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:45:18,940 INFO L93 Difference]: Finished difference Result 161133 states and 276969 transitions. [2024-11-22 01:45:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:45:18,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 6 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 171 [2024-11-22 01:45:18,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:45:19,817 INFO L225 Difference]: With dead ends: 161133 [2024-11-22 01:45:19,817 INFO L226 Difference]: Without dead ends: 120305 [2024-11-22 01:45:19,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:45:19,998 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 3311 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 3402 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 4322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 3402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:45:19,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 1857 Invalid, 4322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 3402 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 01:45:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120305 states.