./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product03.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 859441835e916fdbcdc78c3c849990624cc8f637b8bbdd3bb312aaefa9b36e0f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:00:22,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:00:22,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:00:22,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:00:22,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:00:22,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:00:22,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:00:22,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:00:22,255 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:00:22,255 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:00:22,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:00:22,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:00:22,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:00:22,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:00:22,257 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:00:22,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:00:22,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:00:22,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:00:22,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:00:22,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:00:22,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:00:22,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:00:22,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:00:22,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:00:22,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:00:22,261 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:00:22,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:00:22,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:00:22,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:00:22,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:00:22,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:00:22,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:00:22,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:00:22,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:00:22,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:00:22,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:00:22,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:00:22,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:00:22,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:00:22,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:00:22,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:00:22,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:00:22,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 859441835e916fdbcdc78c3c849990624cc8f637b8bbdd3bb312aaefa9b36e0f [2024-11-18 14:00:22,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:00:22,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:00:22,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:00:22,537 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:00:22,537 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:00:22,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c [2024-11-18 14:00:23,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:00:24,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:00:24,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product03.cil.c [2024-11-18 14:00:24,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fc7daa1/c8e282058aff41cb93afb719b40012f6/FLAG7830c469b [2024-11-18 14:00:24,530 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92fc7daa1/c8e282058aff41cb93afb719b40012f6 [2024-11-18 14:00:24,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:00:24,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:00:24,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:00:24,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:00:24,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:00:24,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:24" (1/1) ... [2024-11-18 14:00:24,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdfba3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:24, skipping insertion in model container [2024-11-18 14:00:24,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:24" (1/1) ... [2024-11-18 14:00:24,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:00:25,054 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_spec2_product03.cil.c[29828,29841] [2024-11-18 14:00:25,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:00:25,193 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:00:25,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-18 14:00:25,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2024-11-18 14:00:25,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [837] [2024-11-18 14:00:25,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [851] [2024-11-18 14:00:25,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1217] [2024-11-18 14:00:25,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1226] [2024-11-18 14:00:25,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1264] [2024-11-18 14:00:25,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1622] [2024-11-18 14:00:25,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3131] [2024-11-18 14:00:25,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3312] [2024-11-18 14:00:25,252 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_spec2_product03.cil.c[29828,29841] [2024-11-18 14:00:25,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:00:25,360 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:00:25,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25 WrapperNode [2024-11-18 14:00:25,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:00:25,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:00:25,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:00:25,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:00:25,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,442 INFO L138 Inliner]: procedures = 92, calls = 336, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1070 [2024-11-18 14:00:25,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:00:25,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:00:25,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:00:25,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:00:25,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,504 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]. [2024-11-18 14:00:25,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:00:25,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:00:25,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:00:25,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:00:25,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (1/1) ... [2024-11-18 14:00:25,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:00:25,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:25,598 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) [2024-11-18 14:00:25,604 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 [2024-11-18 14:00:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:00:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 14:00:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 14:00:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 14:00:25,651 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 14:00:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-18 14:00:25,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-18 14:00:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 14:00:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 14:00:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 14:00:25,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 14:00:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:00:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:00:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:00:25,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:00:25,655 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 14:00:25,655 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 14:00:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:00:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:00:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 14:00:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 14:00:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 14:00:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 14:00:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 14:00:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 14:00:25,656 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-18 14:00:25,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-18 14:00:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 14:00:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 14:00:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 14:00:25,657 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 14:00:25,657 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 14:00:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 14:00:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 14:00:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 14:00:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 14:00:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 14:00:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-18 14:00:25,660 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-18 14:00:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:00:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:00:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:00:25,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 14:00:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 14:00:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 14:00:25,662 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 14:00:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 14:00:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 14:00:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:00:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:00:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 14:00:25,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 14:00:25,865 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:00:25,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:00:27,160 INFO L? ?]: Removed 431 outVars from TransFormulas that were not future-live. [2024-11-18 14:00:27,161 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:00:27,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:00:27,218 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:00:27,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:27 BoogieIcfgContainer [2024-11-18 14:00:27,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:00:27,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:00:27,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:00:27,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:00:27,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:00:24" (1/3) ... [2024-11-18 14:00:27,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436b461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:27, skipping insertion in model container [2024-11-18 14:00:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:25" (2/3) ... [2024-11-18 14:00:27,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436b461f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:27, skipping insertion in model container [2024-11-18 14:00:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:27" (3/3) ... [2024-11-18 14:00:27,231 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product03.cil.c [2024-11-18 14:00:27,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:00:27,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:00:27,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:00:27,346 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;@3f1a6b6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:00:27,346 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:00:27,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 426 states have (on average 1.6948356807511737) internal successors, (722), 447 states have internal predecessors, (722), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-18 14:00:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 14:00:27,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:27,391 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:27,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:27,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:27,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1217975181, now seen corresponding path program 1 times [2024-11-18 14:00:27,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:27,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468946771] [2024-11-18 14:00:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:27,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:27,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468946771] [2024-11-18 14:00:27,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468946771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:27,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:27,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117007165] [2024-11-18 14:00:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:27,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:28,022 INFO L87 Difference]: Start difference. First operand has 545 states, 426 states have (on average 1.6948356807511737) internal successors, (722), 447 states have internal predecessors, (722), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 88 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:28,193 INFO L93 Difference]: Finished difference Result 1070 states and 1795 transitions. [2024-11-18 14:00:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2024-11-18 14:00:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:28,223 INFO L225 Difference]: With dead ends: 1070 [2024-11-18 14:00:28,223 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 14:00:28,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:28,238 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 5 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:28,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2663 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 14:00:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-18 14:00:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 420 states have (on average 1.6904761904761905) internal successors, (710), 439 states have internal predecessors, (710), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 893 transitions. [2024-11-18 14:00:28,345 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 893 transitions. Word has length 102 [2024-11-18 14:00:28,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:28,346 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 893 transitions. [2024-11-18 14:00:28,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 893 transitions. [2024-11-18 14:00:28,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 14:00:28,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:28,356 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:28,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:00:28,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:28,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:28,358 INFO L85 PathProgramCache]: Analyzing trace with hash -493393200, now seen corresponding path program 1 times [2024-11-18 14:00:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49597638] [2024-11-18 14:00:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:28,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:28,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:28,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49597638] [2024-11-18 14:00:28,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49597638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:28,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:28,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:28,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010397897] [2024-11-18 14:00:28,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:28,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:28,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:28,667 INFO L87 Difference]: Start difference. First operand 537 states and 893 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:28,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:28,770 INFO L93 Difference]: Finished difference Result 1056 states and 1763 transitions. [2024-11-18 14:00:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:28,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-18 14:00:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:28,778 INFO L225 Difference]: With dead ends: 1056 [2024-11-18 14:00:28,778 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 14:00:28,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:28,784 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 4 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:28,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2642 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 14:00:28,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-18 14:00:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 420 states have (on average 1.688095238095238) internal successors, (709), 439 states have internal predecessors, (709), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 892 transitions. [2024-11-18 14:00:28,823 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 892 transitions. Word has length 105 [2024-11-18 14:00:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:28,823 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 892 transitions. [2024-11-18 14:00:28,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 892 transitions. [2024-11-18 14:00:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 14:00:28,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:28,829 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:28,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:00:28,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:28,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1657049085, now seen corresponding path program 1 times [2024-11-18 14:00:28,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:28,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985155997] [2024-11-18 14:00:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:28,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:29,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985155997] [2024-11-18 14:00:29,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985155997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:29,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131486514] [2024-11-18 14:00:29,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:29,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:29,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,035 INFO L87 Difference]: Start difference. First operand 537 states and 892 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:29,102 INFO L93 Difference]: Finished difference Result 1056 states and 1762 transitions. [2024-11-18 14:00:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:29,103 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-18 14:00:29,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:29,109 INFO L225 Difference]: With dead ends: 1056 [2024-11-18 14:00:29,110 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 14:00:29,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,114 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 3 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:29,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:29,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 14:00:29,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-18 14:00:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 420 states have (on average 1.6857142857142857) internal successors, (708), 439 states have internal predecessors, (708), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 891 transitions. [2024-11-18 14:00:29,156 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 891 transitions. Word has length 106 [2024-11-18 14:00:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:29,156 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 891 transitions. [2024-11-18 14:00:29,158 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,158 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 891 transitions. [2024-11-18 14:00:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 14:00:29,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:29,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:29,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:00:29,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:29,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:29,166 INFO L85 PathProgramCache]: Analyzing trace with hash -455717396, now seen corresponding path program 1 times [2024-11-18 14:00:29,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:29,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136200711] [2024-11-18 14:00:29,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:29,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:29,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136200711] [2024-11-18 14:00:29,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136200711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:29,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527147325] [2024-11-18 14:00:29,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:29,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,356 INFO L87 Difference]: Start difference. First operand 537 states and 891 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:29,408 INFO L93 Difference]: Finished difference Result 1056 states and 1761 transitions. [2024-11-18 14:00:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:29,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-18 14:00:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:29,415 INFO L225 Difference]: With dead ends: 1056 [2024-11-18 14:00:29,415 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 14:00:29,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,421 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 2 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:29,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 14:00:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-18 14:00:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 420 states have (on average 1.6833333333333333) internal successors, (707), 439 states have internal predecessors, (707), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 890 transitions. [2024-11-18 14:00:29,449 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 890 transitions. Word has length 107 [2024-11-18 14:00:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:29,450 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 890 transitions. [2024-11-18 14:00:29,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 890 transitions. [2024-11-18 14:00:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:00:29,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:29,456 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:29,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:00:29,457 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:29,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1583969447, now seen corresponding path program 1 times [2024-11-18 14:00:29,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:29,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371622544] [2024-11-18 14:00:29,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:29,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:29,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371622544] [2024-11-18 14:00:29,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371622544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:29,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409969840] [2024-11-18 14:00:29,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,617 INFO L87 Difference]: Start difference. First operand 537 states and 890 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:29,666 INFO L93 Difference]: Finished difference Result 1056 states and 1760 transitions. [2024-11-18 14:00:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:29,667 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-18 14:00:29,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:29,672 INFO L225 Difference]: With dead ends: 1056 [2024-11-18 14:00:29,672 INFO L226 Difference]: Without dead ends: 537 [2024-11-18 14:00:29,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:29,676 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 1 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:29,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-18 14:00:29,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-18 14:00:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 420 states have (on average 1.680952380952381) internal successors, (706), 439 states have internal predecessors, (706), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 889 transitions. [2024-11-18 14:00:29,702 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 889 transitions. Word has length 108 [2024-11-18 14:00:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:29,702 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 889 transitions. [2024-11-18 14:00:29,703 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, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:29,703 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 889 transitions. [2024-11-18 14:00:29,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:00:29,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:29,707 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:29,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:00:29,708 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:29,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:29,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2037922056, now seen corresponding path program 1 times [2024-11-18 14:00:29,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:29,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327813740] [2024-11-18 14:00:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:29,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:29,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327813740] [2024-11-18 14:00:29,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327813740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:29,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459568336] [2024-11-18 14:00:29,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:29,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:29,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:29,958 INFO L87 Difference]: Start difference. First operand 537 states and 889 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:00:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:30,059 INFO L93 Difference]: Finished difference Result 1022 states and 1692 transitions. [2024-11-18 14:00:30,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:00:30,059 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2024-11-18 14:00:30,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:30,064 INFO L225 Difference]: With dead ends: 1022 [2024-11-18 14:00:30,064 INFO L226 Difference]: Without dead ends: 552 [2024-11-18 14:00:30,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:30,067 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 91 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5193 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:30,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5193 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:30,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-18 14:00:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 550. [2024-11-18 14:00:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 430 states have (on average 1.6767441860465115) internal successors, (721), 451 states have internal predecessors, (721), 95 states have call successors, (95), 23 states have call predecessors, (95), 24 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2024-11-18 14:00:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 908 transitions. [2024-11-18 14:00:30,099 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 908 transitions. Word has length 109 [2024-11-18 14:00:30,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:30,103 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 908 transitions. [2024-11-18 14:00:30,104 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, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:00:30,104 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 908 transitions. [2024-11-18 14:00:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 14:00:30,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:30,113 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:30,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:00:30,114 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:30,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:30,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2023671911, now seen corresponding path program 1 times [2024-11-18 14:00:30,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:30,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453178262] [2024-11-18 14:00:30,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:30,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:30,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:30,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453178262] [2024-11-18 14:00:30,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453178262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:30,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:30,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:30,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553748819] [2024-11-18 14:00:30,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:30,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:30,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:30,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:30,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:30,234 INFO L87 Difference]: Start difference. First operand 550 states and 908 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:30,288 INFO L93 Difference]: Finished difference Result 1074 states and 1786 transitions. [2024-11-18 14:00:30,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:30,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-18 14:00:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:30,296 INFO L225 Difference]: With dead ends: 1074 [2024-11-18 14:00:30,296 INFO L226 Difference]: Without dead ends: 531 [2024-11-18 14:00:30,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:30,300 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 0 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2644 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:30,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2644 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-18 14:00:30,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-18 14:00:30,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.671497584541063) internal successors, (692), 433 states have internal predecessors, (692), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:30,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 875 transitions. [2024-11-18 14:00:30,320 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 875 transitions. Word has length 109 [2024-11-18 14:00:30,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:30,322 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 875 transitions. [2024-11-18 14:00:30,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:30,322 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 875 transitions. [2024-11-18 14:00:30,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:00:30,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:30,327 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:30,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:00:30,328 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:30,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:30,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1152554182, now seen corresponding path program 1 times [2024-11-18 14:00:30,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740078095] [2024-11-18 14:00:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:30,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:30,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740078095] [2024-11-18 14:00:30,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740078095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:30,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977676871] [2024-11-18 14:00:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:30,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:30,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:30,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:30,506 INFO L87 Difference]: Start difference. First operand 531 states and 875 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:30,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:30,717 INFO L93 Difference]: Finished difference Result 1019 states and 1684 transitions. [2024-11-18 14:00:30,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:30,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-18 14:00:30,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:30,724 INFO L225 Difference]: With dead ends: 1019 [2024-11-18 14:00:30,724 INFO L226 Difference]: Without dead ends: 540 [2024-11-18 14:00:30,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:30,727 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 55 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:30,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4131 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:00:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-18 14:00:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2024-11-18 14:00:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.6618357487922706) internal successors, (688), 433 states have internal predecessors, (688), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 871 transitions. [2024-11-18 14:00:30,747 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 871 transitions. Word has length 110 [2024-11-18 14:00:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:30,747 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 871 transitions. [2024-11-18 14:00:30,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 871 transitions. [2024-11-18 14:00:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 14:00:30,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:30,751 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:30,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:00:30,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:30,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash -898528853, now seen corresponding path program 1 times [2024-11-18 14:00:30,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:30,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730939898] [2024-11-18 14:00:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730939898] [2024-11-18 14:00:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730939898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:30,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:30,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650991056] [2024-11-18 14:00:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:30,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:30,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:30,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:30,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:30,934 INFO L87 Difference]: Start difference. First operand 531 states and 871 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:31,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:31,120 INFO L93 Difference]: Finished difference Result 1019 states and 1680 transitions. [2024-11-18 14:00:31,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:31,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-18 14:00:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:31,127 INFO L225 Difference]: With dead ends: 1019 [2024-11-18 14:00:31,127 INFO L226 Difference]: Without dead ends: 540 [2024-11-18 14:00:31,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:31,134 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 54 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:31,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4131 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-18 14:00:31,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2024-11-18 14:00:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.6521739130434783) internal successors, (684), 433 states have internal predecessors, (684), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 867 transitions. [2024-11-18 14:00:31,159 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 867 transitions. Word has length 111 [2024-11-18 14:00:31,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:31,160 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 867 transitions. [2024-11-18 14:00:31,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 867 transitions. [2024-11-18 14:00:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 14:00:31,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:31,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:31,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:00:31,164 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:31,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:31,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1808837397, now seen corresponding path program 1 times [2024-11-18 14:00:31,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:31,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110244544] [2024-11-18 14:00:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:31,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:31,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:31,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110244544] [2024-11-18 14:00:31,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110244544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:31,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:31,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:31,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824932340] [2024-11-18 14:00:31,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:31,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:31,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:31,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:31,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:31,347 INFO L87 Difference]: Start difference. First operand 531 states and 867 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:31,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:31,509 INFO L93 Difference]: Finished difference Result 1019 states and 1676 transitions. [2024-11-18 14:00:31,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:31,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-18 14:00:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:31,514 INFO L225 Difference]: With dead ends: 1019 [2024-11-18 14:00:31,514 INFO L226 Difference]: Without dead ends: 540 [2024-11-18 14:00:31,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:31,517 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 53 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4113 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:31,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4113 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:31,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-18 14:00:31,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2024-11-18 14:00:31,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 414 states have (on average 1.642512077294686) internal successors, (680), 433 states have internal predecessors, (680), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 863 transitions. [2024-11-18 14:00:31,540 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 863 transitions. Word has length 112 [2024-11-18 14:00:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:31,541 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 863 transitions. [2024-11-18 14:00:31,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 863 transitions. [2024-11-18 14:00:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 14:00:31,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:31,546 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:31,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:00:31,546 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:31,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:31,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1329589909, now seen corresponding path program 1 times [2024-11-18 14:00:31,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:31,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908086666] [2024-11-18 14:00:31,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:31,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:31,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:31,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:31,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908086666] [2024-11-18 14:00:31,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908086666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:31,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:31,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:31,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655474166] [2024-11-18 14:00:31,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:31,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:31,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:31,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:31,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:31,762 INFO L87 Difference]: Start difference. First operand 531 states and 863 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:00:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:31,829 INFO L93 Difference]: Finished difference Result 1010 states and 1658 transitions. [2024-11-18 14:00:31,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:00:31,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2024-11-18 14:00:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:31,835 INFO L225 Difference]: With dead ends: 1010 [2024-11-18 14:00:31,836 INFO L226 Difference]: Without dead ends: 510 [2024-11-18 14:00:31,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:31,840 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 84 mSDsluCounter, 4187 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:31,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5039 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-18 14:00:31,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-18 14:00:31,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 393 states have (on average 1.643765903307888) internal successors, (646), 412 states have internal predecessors, (646), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 829 transitions. [2024-11-18 14:00:31,858 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 829 transitions. Word has length 112 [2024-11-18 14:00:31,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:31,858 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 829 transitions. [2024-11-18 14:00:31,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:00:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 829 transitions. [2024-11-18 14:00:31,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 14:00:31,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:31,862 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:31,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:00:31,862 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:31,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1714875088, now seen corresponding path program 1 times [2024-11-18 14:00:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:31,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756734364] [2024-11-18 14:00:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:32,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756734364] [2024-11-18 14:00:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756734364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16901962] [2024-11-18 14:00:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:32,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:32,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:32,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:32,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:32,042 INFO L87 Difference]: Start difference. First operand 510 states and 829 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:32,119 INFO L93 Difference]: Finished difference Result 989 states and 1624 transitions. [2024-11-18 14:00:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-18 14:00:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:32,124 INFO L225 Difference]: With dead ends: 989 [2024-11-18 14:00:32,125 INFO L226 Difference]: Without dead ends: 510 [2024-11-18 14:00:32,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:32,129 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 17 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:32,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4051 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-18 14:00:32,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-18 14:00:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 393 states have (on average 1.6412213740458015) internal successors, (645), 412 states have internal predecessors, (645), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:32,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 828 transitions. [2024-11-18 14:00:32,150 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 828 transitions. Word has length 113 [2024-11-18 14:00:32,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:32,151 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 828 transitions. [2024-11-18 14:00:32,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,151 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 828 transitions. [2024-11-18 14:00:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-18 14:00:32,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:32,154 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:32,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:00:32,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:32,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash -553287408, now seen corresponding path program 1 times [2024-11-18 14:00:32,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:32,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431047677] [2024-11-18 14:00:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:32,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:32,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431047677] [2024-11-18 14:00:32,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431047677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:32,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:32,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7963745] [2024-11-18 14:00:32,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:32,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:32,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:32,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:32,332 INFO L87 Difference]: Start difference. First operand 510 states and 828 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:32,411 INFO L93 Difference]: Finished difference Result 989 states and 1623 transitions. [2024-11-18 14:00:32,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:32,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-18 14:00:32,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:32,417 INFO L225 Difference]: With dead ends: 989 [2024-11-18 14:00:32,418 INFO L226 Difference]: Without dead ends: 510 [2024-11-18 14:00:32,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:32,421 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 16 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:32,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4051 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:32,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-18 14:00:32,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-18 14:00:32,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 393 states have (on average 1.638676844783715) internal successors, (644), 412 states have internal predecessors, (644), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 827 transitions. [2024-11-18 14:00:32,438 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 827 transitions. Word has length 114 [2024-11-18 14:00:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:32,439 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 827 transitions. [2024-11-18 14:00:32,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 827 transitions. [2024-11-18 14:00:32,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:00:32,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:32,442 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:32,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:00:32,442 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:32,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:32,443 INFO L85 PathProgramCache]: Analyzing trace with hash -655051595, now seen corresponding path program 1 times [2024-11-18 14:00:32,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:32,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116276186] [2024-11-18 14:00:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:32,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:00:32,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:32,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116276186] [2024-11-18 14:00:32,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116276186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:32,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:32,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:32,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255219751] [2024-11-18 14:00:32,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:32,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:32,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:32,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:32,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:32,567 INFO L87 Difference]: Start difference. First operand 510 states and 827 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:32,606 INFO L93 Difference]: Finished difference Result 983 states and 1611 transitions. [2024-11-18 14:00:32,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:32,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-18 14:00:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:32,611 INFO L225 Difference]: With dead ends: 983 [2024-11-18 14:00:32,611 INFO L226 Difference]: Without dead ends: 510 [2024-11-18 14:00:32,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:32,614 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 5 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:32,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2435 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-18 14:00:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-18 14:00:32,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 393 states have (on average 1.6361323155216285) internal successors, (643), 412 states have internal predecessors, (643), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-18 14:00:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 826 transitions. [2024-11-18 14:00:32,633 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 826 transitions. Word has length 115 [2024-11-18 14:00:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:32,634 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 826 transitions. [2024-11-18 14:00:32,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:32,635 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 826 transitions. [2024-11-18 14:00:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 14:00:32,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:32,638 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:32,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:00:32,639 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:32,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash -565790203, now seen corresponding path program 1 times [2024-11-18 14:00:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:32,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23592714] [2024-11-18 14:00:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:32,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:32,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:32,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23592714] [2024-11-18 14:00:32,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23592714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:32,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2184331] [2024-11-18 14:00:32,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:32,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:32,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:32,810 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) [2024-11-18 14:00:32,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:00:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:33,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:00:33,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:33,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:00:33,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:33,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2184331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:33,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:33,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-18 14:00:33,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659395530] [2024-11-18 14:00:33,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:33,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:00:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:33,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:00:33,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:33,205 INFO L87 Difference]: Start difference. First operand 510 states and 826 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:33,280 INFO L93 Difference]: Finished difference Result 1435 states and 2385 transitions. [2024-11-18 14:00:33,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:00:33,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-18 14:00:33,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:33,291 INFO L225 Difference]: With dead ends: 1435 [2024-11-18 14:00:33,291 INFO L226 Difference]: Without dead ends: 970 [2024-11-18 14:00:33,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:33,296 INFO L432 NwaCegarLoop]: 1455 mSDtfsCounter, 766 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:33,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 2270 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-18 14:00:33,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 950. [2024-11-18 14:00:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 735 states have (on average 1.6625850340136055) internal successors, (1222), 767 states have internal predecessors, (1222), 174 states have call successors, (174), 40 states have call predecessors, (174), 40 states have return successors, (175), 168 states have call predecessors, (175), 169 states have call successors, (175) [2024-11-18 14:00:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1571 transitions. [2024-11-18 14:00:33,340 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1571 transitions. Word has length 116 [2024-11-18 14:00:33,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:33,340 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1571 transitions. [2024-11-18 14:00:33,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:00:33,341 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1571 transitions. [2024-11-18 14:00:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 14:00:33,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:33,344 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:33,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:33,548 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,SelfDestructingSolverStorable14 [2024-11-18 14:00:33,549 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:33,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:33,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1357437831, now seen corresponding path program 1 times [2024-11-18 14:00:33,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:33,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139316555] [2024-11-18 14:00:33,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:33,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:33,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139316555] [2024-11-18 14:00:33,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139316555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:33,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839817868] [2024-11-18 14:00:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:33,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:33,688 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) [2024-11-18 14:00:33,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:00:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:34,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:00:34,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:34,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:34,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839817868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:34,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:34,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 14:00:34,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594702206] [2024-11-18 14:00:34,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:34,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:34,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:34,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:34,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:34,262 INFO L87 Difference]: Start difference. First operand 950 states and 1571 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:34,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:34,831 INFO L93 Difference]: Finished difference Result 1871 states and 3156 transitions. [2024-11-18 14:00:34,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:34,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-18 14:00:34,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:34,840 INFO L225 Difference]: With dead ends: 1871 [2024-11-18 14:00:34,840 INFO L226 Difference]: Without dead ends: 966 [2024-11-18 14:00:34,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:34,846 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 786 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:34,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2064 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:00:34,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2024-11-18 14:00:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2024-11-18 14:00:34,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 749 states have (on average 1.6635514018691588) internal successors, (1246), 781 states have internal predecessors, (1246), 174 states have call successors, (174), 42 states have call predecessors, (174), 42 states have return successors, (177), 168 states have call predecessors, (177), 169 states have call successors, (177) [2024-11-18 14:00:34,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1597 transitions. [2024-11-18 14:00:34,895 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1597 transitions. Word has length 116 [2024-11-18 14:00:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:34,896 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1597 transitions. [2024-11-18 14:00:34,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:34,896 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1597 transitions. [2024-11-18 14:00:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:00:34,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:34,899 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:34,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:35,103 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,SelfDestructingSolverStorable15 [2024-11-18 14:00:35,104 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:35,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash -846352067, now seen corresponding path program 1 times [2024-11-18 14:00:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:35,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056660984] [2024-11-18 14:00:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:35,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:35,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056660984] [2024-11-18 14:00:35,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056660984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:35,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764785101] [2024-11-18 14:00:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:35,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:35,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:35,255 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) [2024-11-18 14:00:35,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:00:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:35,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:00:35,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:35,712 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:35,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:35,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764785101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:35,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:35,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 14:00:35,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693844697] [2024-11-18 14:00:35,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:35,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:35,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:35,715 INFO L87 Difference]: Start difference. First operand 966 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:36,279 INFO L93 Difference]: Finished difference Result 1903 states and 3202 transitions. [2024-11-18 14:00:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-11-18 14:00:36,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:36,288 INFO L225 Difference]: With dead ends: 1903 [2024-11-18 14:00:36,288 INFO L226 Difference]: Without dead ends: 982 [2024-11-18 14:00:36,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:36,293 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 783 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:36,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2061 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:00:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-18 14:00:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 982. [2024-11-18 14:00:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 763 states have (on average 1.6644823066841417) internal successors, (1270), 795 states have internal predecessors, (1270), 174 states have call successors, (174), 44 states have call predecessors, (174), 44 states have return successors, (179), 168 states have call predecessors, (179), 169 states have call successors, (179) [2024-11-18 14:00:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1623 transitions. [2024-11-18 14:00:36,332 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1623 transitions. Word has length 118 [2024-11-18 14:00:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:36,333 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1623 transitions. [2024-11-18 14:00:36,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:36,333 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1623 transitions. [2024-11-18 14:00:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 14:00:36,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:36,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:36,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:00:36,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:36,539 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:36,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash 599562823, now seen corresponding path program 1 times [2024-11-18 14:00:36,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:36,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733752105] [2024-11-18 14:00:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733752105] [2024-11-18 14:00:36,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733752105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127029553] [2024-11-18 14:00:36,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:36,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:36,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:36,670 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) [2024-11-18 14:00:36,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:00:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:36,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:00:37,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:37,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:37,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127029553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:37,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:37,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 14:00:37,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180741684] [2024-11-18 14:00:37,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:37,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:37,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:37,126 INFO L87 Difference]: Start difference. First operand 982 states and 1623 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:37,691 INFO L93 Difference]: Finished difference Result 1935 states and 3248 transitions. [2024-11-18 14:00:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-11-18 14:00:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:37,699 INFO L225 Difference]: With dead ends: 1935 [2024-11-18 14:00:37,699 INFO L226 Difference]: Without dead ends: 998 [2024-11-18 14:00:37,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:37,704 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 777 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:37,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 2058 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:00:37,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-18 14:00:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 998. [2024-11-18 14:00:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 777 states have (on average 1.6653796653796653) internal successors, (1294), 809 states have internal predecessors, (1294), 174 states have call successors, (174), 46 states have call predecessors, (174), 46 states have return successors, (181), 168 states have call predecessors, (181), 169 states have call successors, (181) [2024-11-18 14:00:37,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1649 transitions. [2024-11-18 14:00:37,744 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1649 transitions. Word has length 120 [2024-11-18 14:00:37,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:37,747 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1649 transitions. [2024-11-18 14:00:37,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1649 transitions. [2024-11-18 14:00:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 14:00:37,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:37,751 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] [2024-11-18 14:00:37,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:37,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 14:00:37,953 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:37,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:37,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1565421579, now seen corresponding path program 1 times [2024-11-18 14:00:37,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:37,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208489702] [2024-11-18 14:00:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:38,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:38,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208489702] [2024-11-18 14:00:38,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208489702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:38,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571425524] [2024-11-18 14:00:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:38,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:38,087 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) [2024-11-18 14:00:38,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:00:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:38,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:00:38,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:38,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571425524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 14:00:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751993043] [2024-11-18 14:00:38,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:38,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:38,550 INFO L87 Difference]: Start difference. First operand 998 states and 1649 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:39,048 INFO L93 Difference]: Finished difference Result 1967 states and 3294 transitions. [2024-11-18 14:00:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:39,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-18 14:00:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:39,058 INFO L225 Difference]: With dead ends: 1967 [2024-11-18 14:00:39,058 INFO L226 Difference]: Without dead ends: 1014 [2024-11-18 14:00:39,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:39,065 INFO L432 NwaCegarLoop]: 799 mSDtfsCounter, 771 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:39,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 2055 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:00:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-18 14:00:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2024-11-18 14:00:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 791 states have (on average 1.6662452591656132) internal successors, (1318), 823 states have internal predecessors, (1318), 174 states have call successors, (174), 48 states have call predecessors, (174), 48 states have return successors, (183), 168 states have call predecessors, (183), 169 states have call successors, (183) [2024-11-18 14:00:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1675 transitions. [2024-11-18 14:00:39,104 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1675 transitions. Word has length 122 [2024-11-18 14:00:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:39,104 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1675 transitions. [2024-11-18 14:00:39,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 14:00:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1675 transitions. [2024-11-18 14:00:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-18 14:00:39,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:39,107 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] [2024-11-18 14:00:39,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:00:39,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:39,308 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:39,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash -316376153, now seen corresponding path program 1 times [2024-11-18 14:00:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584856459] [2024-11-18 14:00:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:39,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:39,439 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:39,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584856459] [2024-11-18 14:00:39,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584856459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938823496] [2024-11-18 14:00:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:39,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:39,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:39,442 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) [2024-11-18 14:00:39,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:00:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:39,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:00:39,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:00:39,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:39,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938823496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:39,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:39,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 14:00:39,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718361687] [2024-11-18 14:00:39,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:39,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:39,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:39,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:39,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:39,935 INFO L87 Difference]: Start difference. First operand 1014 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:00:40,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:40,277 INFO L93 Difference]: Finished difference Result 1095 states and 1801 transitions. [2024-11-18 14:00:40,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 124 [2024-11-18 14:00:40,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:40,287 INFO L225 Difference]: With dead ends: 1095 [2024-11-18 14:00:40,287 INFO L226 Difference]: Without dead ends: 1080 [2024-11-18 14:00:40,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:40,289 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 761 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:40,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1487 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:00:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2024-11-18 14:00:40,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1020. [2024-11-18 14:00:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 797 states have (on average 1.6612296110414053) internal successors, (1324), 829 states have internal predecessors, (1324), 174 states have call successors, (174), 48 states have call predecessors, (174), 48 states have return successors, (183), 168 states have call predecessors, (183), 169 states have call successors, (183) [2024-11-18 14:00:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1681 transitions. [2024-11-18 14:00:40,341 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1681 transitions. Word has length 124 [2024-11-18 14:00:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:40,341 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1681 transitions. [2024-11-18 14:00:40,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:00:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1681 transitions. [2024-11-18 14:00:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 14:00:40,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:40,346 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] [2024-11-18 14:00:40,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:00:40,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:40,548 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:40,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash 733240546, now seen corresponding path program 1 times [2024-11-18 14:00:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:40,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762324156] [2024-11-18 14:00:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:00:40,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762324156] [2024-11-18 14:00:40,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762324156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280281010] [2024-11-18 14:00:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:40,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:40,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:40,681 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) [2024-11-18 14:00:40,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:00:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:41,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 14:00:41,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:00:41,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:41,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280281010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:41,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:41,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-18 14:00:41,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757048340] [2024-11-18 14:00:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:41,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:41,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:41,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:41,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:41,078 INFO L87 Difference]: Start difference. First operand 1020 states and 1681 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 14:00:41,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:41,125 INFO L93 Difference]: Finished difference Result 1035 states and 1699 transitions. [2024-11-18 14:00:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:41,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) Word has length 130 [2024-11-18 14:00:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:41,135 INFO L225 Difference]: With dead ends: 1035 [2024-11-18 14:00:41,135 INFO L226 Difference]: Without dead ends: 1020 [2024-11-18 14:00:41,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:41,136 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 0 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:41,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3288 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-18 14:00:41,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1020. [2024-11-18 14:00:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 797 states have (on average 1.658720200752823) internal successors, (1322), 829 states have internal predecessors, (1322), 174 states have call successors, (174), 48 states have call predecessors, (174), 48 states have return successors, (183), 168 states have call predecessors, (183), 169 states have call successors, (183) [2024-11-18 14:00:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1679 transitions. [2024-11-18 14:00:41,197 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1679 transitions. Word has length 130 [2024-11-18 14:00:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:41,197 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1679 transitions. [2024-11-18 14:00:41,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 14:00:41,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1679 transitions. [2024-11-18 14:00:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:00:41,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:41,202 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-18 14:00:41,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 14:00:41,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:41,404 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:41,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:41,404 INFO L85 PathProgramCache]: Analyzing trace with hash -784580883, now seen corresponding path program 1 times [2024-11-18 14:00:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274370827] [2024-11-18 14:00:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:41,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:00:41,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274370827] [2024-11-18 14:00:41,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274370827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:41,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896684807] [2024-11-18 14:00:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:41,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:41,621 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) [2024-11-18 14:00:41,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 14:00:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:41,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 1484 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 14:00:41,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 14:00:42,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:42,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896684807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:42,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:42,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-18 14:00:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662101634] [2024-11-18 14:00:42,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:42,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:42,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:42,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:42,021 INFO L87 Difference]: Start difference. First operand 1020 states and 1679 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-18 14:00:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:42,461 INFO L93 Difference]: Finished difference Result 1999 states and 3356 transitions. [2024-11-18 14:00:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:42,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2024-11-18 14:00:42,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:42,471 INFO L225 Difference]: With dead ends: 1999 [2024-11-18 14:00:42,471 INFO L226 Difference]: Without dead ends: 1024 [2024-11-18 14:00:42,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:42,478 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 766 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:42,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2052 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:00:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-11-18 14:00:42,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 1024. [2024-11-18 14:00:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 799 states have (on average 1.6470588235294117) internal successors, (1316), 833 states have internal predecessors, (1316), 174 states have call successors, (174), 48 states have call predecessors, (174), 50 states have return successors, (185), 168 states have call predecessors, (185), 169 states have call successors, (185) [2024-11-18 14:00:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1675 transitions. [2024-11-18 14:00:42,529 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1675 transitions. Word has length 141 [2024-11-18 14:00:42,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:42,529 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1675 transitions. [2024-11-18 14:00:42,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-18 14:00:42,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1675 transitions. [2024-11-18 14:00:42,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:00:42,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:42,535 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-18 14:00:42,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:42,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-18 14:00:42,735 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:42,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1514414195, now seen corresponding path program 1 times [2024-11-18 14:00:42,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:42,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358455943] [2024-11-18 14:00:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:42,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-18 14:00:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358455943] [2024-11-18 14:00:43,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358455943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208714245] [2024-11-18 14:00:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:43,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:43,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:43,069 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) [2024-11-18 14:00:43,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 14:00:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:43,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:00:43,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:43,650 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:00:43,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:43,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208714245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:43,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:43,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-18 14:00:43,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926277906] [2024-11-18 14:00:43,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:43,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:43,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:43,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:00:43,653 INFO L87 Difference]: Start difference. First operand 1024 states and 1675 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-18 14:00:45,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:45,069 INFO L93 Difference]: Finished difference Result 2668 states and 4378 transitions. [2024-11-18 14:00:45,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:45,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 141 [2024-11-18 14:00:45,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:45,092 INFO L225 Difference]: With dead ends: 2668 [2024-11-18 14:00:45,092 INFO L226 Difference]: Without dead ends: 1689 [2024-11-18 14:00:45,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:00:45,099 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1420 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:45,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1403 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:00:45,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2024-11-18 14:00:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1640. [2024-11-18 14:00:45,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1228 states have (on average 1.6034201954397393) internal successors, (1969), 1291 states have internal predecessors, (1969), 333 states have call successors, (333), 70 states have call predecessors, (333), 78 states have return successors, (364), 326 states have call predecessors, (364), 328 states have call successors, (364) [2024-11-18 14:00:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2666 transitions. [2024-11-18 14:00:45,192 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2666 transitions. Word has length 141 [2024-11-18 14:00:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:45,193 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2666 transitions. [2024-11-18 14:00:45,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-18 14:00:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2666 transitions. [2024-11-18 14:00:45,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:00:45,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:45,199 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-18 14:00:45,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-18 14:00:45,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:45,403 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:45,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:45,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1893330255, now seen corresponding path program 1 times [2024-11-18 14:00:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:45,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001109650] [2024-11-18 14:00:45,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-18 14:00:45,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001109650] [2024-11-18 14:00:45,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001109650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:45,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721322323] [2024-11-18 14:00:45,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:45,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:45,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:45,754 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) [2024-11-18 14:00:45,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 14:00:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:46,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 14:00:46,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:00:46,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721322323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:46,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-18 14:00:46,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506242499] [2024-11-18 14:00:46,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:46,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:00:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:46,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:00:46,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:00:46,247 INFO L87 Difference]: Start difference. First operand 1640 states and 2666 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:00:49,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:49,113 INFO L93 Difference]: Finished difference Result 3703 states and 6079 transitions. [2024-11-18 14:00:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:00:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2024-11-18 14:00:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:49,131 INFO L225 Difference]: With dead ends: 3703 [2024-11-18 14:00:49,131 INFO L226 Difference]: Without dead ends: 2110 [2024-11-18 14:00:49,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-18 14:00:49,142 INFO L432 NwaCegarLoop]: 518 mSDtfsCounter, 2276 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 4528 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 5030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 4528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:49,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2817 Invalid, 5030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 4528 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 14:00:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2024-11-18 14:00:49,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 1963. [2024-11-18 14:00:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1476 states have (on average 1.6043360433604337) internal successors, (2368), 1550 states have internal predecessors, (2368), 390 states have call successors, (390), 81 states have call predecessors, (390), 96 states have return successors, (441), 379 states have call predecessors, (441), 385 states have call successors, (441) [2024-11-18 14:00:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 3199 transitions. [2024-11-18 14:00:49,260 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 3199 transitions. Word has length 141 [2024-11-18 14:00:49,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:49,260 INFO L471 AbstractCegarLoop]: Abstraction has 1963 states and 3199 transitions. [2024-11-18 14:00:49,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:00:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 3199 transitions. [2024-11-18 14:00:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 14:00:49,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:49,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:49,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:49,469 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,SelfDestructingSolverStorable23 [2024-11-18 14:00:49,470 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:49,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash 790543407, now seen corresponding path program 1 times [2024-11-18 14:00:49,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:49,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136171803] [2024-11-18 14:00:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:49,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:00:49,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:49,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136171803] [2024-11-18 14:00:49,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136171803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:49,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245082989] [2024-11-18 14:00:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:49,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:49,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:49,760 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) [2024-11-18 14:00:49,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 14:00:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:50,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-18 14:00:50,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 14:00:50,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:50,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245082989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:50,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:50,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-18 14:00:50,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652718980] [2024-11-18 14:00:50,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:50,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:00:50,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:50,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:00:50,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:00:50,426 INFO L87 Difference]: Start difference. First operand 1963 states and 3199 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-18 14:00:52,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:52,654 INFO L93 Difference]: Finished difference Result 4115 states and 6760 transitions. [2024-11-18 14:00:52,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:00:52,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 143 [2024-11-18 14:00:52,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:52,674 INFO L225 Difference]: With dead ends: 4115 [2024-11-18 14:00:52,674 INFO L226 Difference]: Without dead ends: 2201 [2024-11-18 14:00:52,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-18 14:00:52,686 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 2499 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 4246 mSolverCounterSat, 618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 4864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 4246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:52,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 1745 Invalid, 4864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 4246 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 14:00:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2024-11-18 14:00:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 1992. [2024-11-18 14:00:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1992 states, 1498 states have (on average 1.5974632843791723) internal successors, (2393), 1575 states have internal predecessors, (2393), 391 states have call successors, (391), 84 states have call predecessors, (391), 102 states have return successors, (452), 380 states have call predecessors, (452), 386 states have call successors, (452) [2024-11-18 14:00:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1992 states to 1992 states and 3236 transitions. [2024-11-18 14:00:52,842 INFO L78 Accepts]: Start accepts. Automaton has 1992 states and 3236 transitions. Word has length 143 [2024-11-18 14:00:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:52,843 INFO L471 AbstractCegarLoop]: Abstraction has 1992 states and 3236 transitions. [2024-11-18 14:00:52,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-18 14:00:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1992 states and 3236 transitions. [2024-11-18 14:00:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-18 14:00:52,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:52,848 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:52,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-18 14:00:53,048 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,SelfDestructingSolverStorable24 [2024-11-18 14:00:53,049 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:53,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash -745174569, now seen corresponding path program 1 times [2024-11-18 14:00:53,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:53,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486298210] [2024-11-18 14:00:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:53,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:00:53,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:53,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486298210] [2024-11-18 14:00:53,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486298210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:53,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040025743] [2024-11-18 14:00:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:53,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:53,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:53,339 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) [2024-11-18 14:00:53,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 14:00:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:53,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:00:53,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:53,738 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:00:53,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:53,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040025743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:53,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:53,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 14:00:53,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331153542] [2024-11-18 14:00:53,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:53,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:53,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:53,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:00:53,740 INFO L87 Difference]: Start difference. First operand 1992 states and 3236 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:00:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:55,170 INFO L93 Difference]: Finished difference Result 6415 states and 10627 transitions. [2024-11-18 14:00:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:55,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 148 [2024-11-18 14:00:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:55,204 INFO L225 Difference]: With dead ends: 6415 [2024-11-18 14:00:55,204 INFO L226 Difference]: Without dead ends: 4468 [2024-11-18 14:00:55,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:00:55,216 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1813 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1889 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:55,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1889 Valid, 914 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 14:00:55,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4468 states. [2024-11-18 14:00:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4468 to 4244. [2024-11-18 14:00:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4244 states, 3136 states have (on average 1.5953443877551021) internal successors, (5003), 3317 states have internal predecessors, (5003), 892 states have call successors, (892), 163 states have call predecessors, (892), 215 states have return successors, (1119), 879 states have call predecessors, (1119), 887 states have call successors, (1119) [2024-11-18 14:00:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 7014 transitions. [2024-11-18 14:00:55,566 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 7014 transitions. Word has length 148 [2024-11-18 14:00:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:55,566 INFO L471 AbstractCegarLoop]: Abstraction has 4244 states and 7014 transitions. [2024-11-18 14:00:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:00:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 7014 transitions. [2024-11-18 14:00:55,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-18 14:00:55,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:55,573 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:55,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-18 14:00:55,773 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,SelfDestructingSolverStorable25 [2024-11-18 14:00:55,774 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:55,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1625709904, now seen corresponding path program 1 times [2024-11-18 14:00:55,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:55,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92064169] [2024-11-18 14:00:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:00:56,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92064169] [2024-11-18 14:00:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92064169] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140798817] [2024-11-18 14:00:56,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:56,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:56,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:56,069 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) [2024-11-18 14:00:56,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-18 14:00:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:56,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 1507 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:00:56,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:00:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:00:56,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:00:56,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140798817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:56,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:00:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 14:00:56,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928641084] [2024-11-18 14:00:56,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:56,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:56,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:00:56,462 INFO L87 Difference]: Start difference. First operand 4244 states and 7014 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:00:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:58,509 INFO L93 Difference]: Finished difference Result 14015 states and 23789 transitions. [2024-11-18 14:00:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:58,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2024-11-18 14:00:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:58,581 INFO L225 Difference]: With dead ends: 14015 [2024-11-18 14:00:58,581 INFO L226 Difference]: Without dead ends: 9816 [2024-11-18 14:00:58,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:00:58,596 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1818 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:58,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 880 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 14:00:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2024-11-18 14:00:59,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 9337. [2024-11-18 14:00:59,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9337 states, 6759 states have (on average 1.588548601864181) internal successors, (10737), 7194 states have internal predecessors, (10737), 2118 states have call successors, (2118), 321 states have call predecessors, (2118), 459 states have return successors, (2945), 2109 states have call predecessors, (2945), 2113 states have call successors, (2945) [2024-11-18 14:00:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9337 states to 9337 states and 15800 transitions. [2024-11-18 14:00:59,270 INFO L78 Accepts]: Start accepts. Automaton has 9337 states and 15800 transitions. Word has length 149 [2024-11-18 14:00:59,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:59,270 INFO L471 AbstractCegarLoop]: Abstraction has 9337 states and 15800 transitions. [2024-11-18 14:00:59,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:00:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 9337 states and 15800 transitions. [2024-11-18 14:00:59,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 14:00:59,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:59,277 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:59,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-18 14:00:59,477 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,SelfDestructingSolverStorable26 [2024-11-18 14:00:59,477 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:59,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1142469689, now seen corresponding path program 1 times [2024-11-18 14:00:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:59,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252906784] [2024-11-18 14:00:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:00:59,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252906784] [2024-11-18 14:00:59,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252906784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:00:59,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745517046] [2024-11-18 14:00:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:59,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:00:59,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:59,745 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) [2024-11-18 14:00:59,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-18 14:01:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:00,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 1509 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:01:00,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:01:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:01:00,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:01:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745517046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:00,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:01:00,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 14:01:00,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029197559] [2024-11-18 14:01:00,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:00,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:00,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:00,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:01:00,283 INFO L87 Difference]: Start difference. First operand 9337 states and 15800 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:01:02,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:02,776 INFO L93 Difference]: Finished difference Result 31468 states and 55440 transitions. [2024-11-18 14:01:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:02,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2024-11-18 14:01:02,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:02,977 INFO L225 Difference]: With dead ends: 31468 [2024-11-18 14:01:02,977 INFO L226 Difference]: Without dead ends: 22176 [2024-11-18 14:01:03,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:01:03,046 INFO L432 NwaCegarLoop]: 367 mSDtfsCounter, 1805 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:03,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 876 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:01:03,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22176 states. [2024-11-18 14:01:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22176 to 21184. [2024-11-18 14:01:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21184 states, 14990 states have (on average 1.5791194129419612) internal successors, (23671), 16053 states have internal predecessors, (23671), 5202 states have call successors, (5202), 637 states have call predecessors, (5202), 991 states have return successors, (8193), 5225 states have call predecessors, (8193), 5197 states have call successors, (8193) [2024-11-18 14:01:05,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21184 states to 21184 states and 37066 transitions. [2024-11-18 14:01:05,328 INFO L78 Accepts]: Start accepts. Automaton has 21184 states and 37066 transitions. Word has length 150 [2024-11-18 14:01:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:05,329 INFO L471 AbstractCegarLoop]: Abstraction has 21184 states and 37066 transitions. [2024-11-18 14:01:05,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:01:05,329 INFO L276 IsEmpty]: Start isEmpty. Operand 21184 states and 37066 transitions. [2024-11-18 14:01:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-18 14:01:05,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:05,336 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:05,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-18 14:01:05,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:01:05,540 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:05,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1056695058, now seen corresponding path program 1 times [2024-11-18 14:01:05,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:05,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716936045] [2024-11-18 14:01:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:05,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:05,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:01:05,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:05,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716936045] [2024-11-18 14:01:05,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716936045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:01:05,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45353073] [2024-11-18 14:01:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:05,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:01:05,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:01:05,829 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) [2024-11-18 14:01:05,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-18 14:01:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:06,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:01:06,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:01:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:01:06,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:01:06,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45353073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:06,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:01:06,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 14:01:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568793475] [2024-11-18 14:01:06,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:06,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:06,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:06,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:06,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:01:06,271 INFO L87 Difference]: Start difference. First operand 21184 states and 37066 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:01:11,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:11,031 INFO L93 Difference]: Finished difference Result 72611 states and 135341 transitions. [2024-11-18 14:01:11,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:11,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 151 [2024-11-18 14:01:11,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:11,561 INFO L225 Difference]: With dead ends: 72611 [2024-11-18 14:01:11,561 INFO L226 Difference]: Without dead ends: 51472 [2024-11-18 14:01:11,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:01:11,697 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 1792 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:11,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 875 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 14:01:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51472 states. [2024-11-18 14:01:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51472 to 49563. [2024-11-18 14:01:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49563 states, 34257 states have (on average 1.5682926117289897) internal successors, (53725), 36892 states have internal predecessors, (53725), 13138 states have call successors, (13138), 1269 states have call predecessors, (13138), 2167 states have return successors, (23973), 13297 states have call predecessors, (23973), 13133 states have call successors, (23973) [2024-11-18 14:01:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49563 states to 49563 states and 90836 transitions. [2024-11-18 14:01:16,475 INFO L78 Accepts]: Start accepts. Automaton has 49563 states and 90836 transitions. Word has length 151 [2024-11-18 14:01:16,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:16,475 INFO L471 AbstractCegarLoop]: Abstraction has 49563 states and 90836 transitions. [2024-11-18 14:01:16,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:01:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 49563 states and 90836 transitions. [2024-11-18 14:01:16,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:01:16,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:16,484 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:16,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-18 14:01:16,688 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,SelfDestructingSolverStorable28 [2024-11-18 14:01:16,689 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1602314597, now seen corresponding path program 1 times [2024-11-18 14:01:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090626173] [2024-11-18 14:01:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:16,959 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-18 14:01:16,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:16,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090626173] [2024-11-18 14:01:16,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090626173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:01:16,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562113754] [2024-11-18 14:01:16,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:16,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:01:16,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:01:16,963 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) [2024-11-18 14:01:16,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-18 14:01:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:17,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 14:01:17,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:01:17,363 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 14:01:17,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:01:17,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562113754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:17,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:01:17,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 14:01:17,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276369471] [2024-11-18 14:01:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:17,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:17,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:01:17,365 INFO L87 Difference]: Start difference. First operand 49563 states and 90836 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 14:01:29,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:29,630 INFO L93 Difference]: Finished difference Result 172082 states and 349077 transitions. [2024-11-18 14:01:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:29,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2024-11-18 14:01:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:31,087 INFO L225 Difference]: With dead ends: 172082 [2024-11-18 14:01:31,087 INFO L226 Difference]: Without dead ends: 122554 [2024-11-18 14:01:31,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:01:31,722 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1774 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:31,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 880 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 14:01:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122554 states.