./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec9_product31.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 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:49:49,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:49:49,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:49:49,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:49:49,636 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:49:49,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:49:49,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:49:49,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:49:49,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:49:49,660 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:49:49,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:49:49,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:49:49,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:49:49,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:49:49,663 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:49:49,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:49:49,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:49:49,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:49:49,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:49:49,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:49:49,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:49:49,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:49:49,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:49:49,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:49:49,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:49:49,667 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:49:49,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:49:49,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:49:49,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:49:49,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:49:49,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:49:49,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:49:49,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:49:49,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:49:49,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:49:49,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:49:49,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:49:49,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:49:49,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:49:49,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:49:49,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:49:49,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:49:49,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 [2024-11-22 01:49:49,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:49:49,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:49:49,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:49:49,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:49:49,902 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:49:49,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2024-11-22 01:49:51,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:49:51,591 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:49:51,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2024-11-22 01:49:51,614 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca0e0093/b0408dfa3cc847cd9082c561694396df/FLAGf5d3c0507 [2024-11-22 01:49:51,627 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca0e0093/b0408dfa3cc847cd9082c561694396df [2024-11-22 01:49:51,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:49:51,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:49:51,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:49:51,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:49:51,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:49:51,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:51" (1/1) ... [2024-11-22 01:49:51,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b69bbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:51, skipping insertion in model container [2024-11-22 01:49:51,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:51" (1/1) ... [2024-11-22 01:49:51,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:49:51,945 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_spec9_product31.cil.c[5910,5923] [2024-11-22 01:49:52,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:49:52,241 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:49:52,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-11-22 01:49:52,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2024-11-22 01:49:52,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [183] [2024-11-22 01:49:52,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [284] [2024-11-22 01:49:52,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [293] [2024-11-22 01:49:52,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [960] [2024-11-22 01:49:52,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1122] [2024-11-22 01:49:52,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2737] [2024-11-22 01:49:52,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2775] [2024-11-22 01:49:52,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3141] [2024-11-22 01:49:52,263 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_spec9_product31.cil.c[5910,5923] [2024-11-22 01:49:52,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:49:52,379 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:49:52,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52 WrapperNode [2024-11-22 01:49:52,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:49:52,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:49:52,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:49:52,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:49:52,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,460 INFO L138 Inliner]: procedures = 97, calls = 346, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 924 [2024-11-22 01:49:52,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:49:52,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:49:52,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:49:52,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:49:52,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,502 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-22 01:49:52,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:49:52,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:49:52,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:49:52,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:49:52,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (1/1) ... [2024-11-22 01:49:52,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:49:52,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:49:52,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:49:52,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:49:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:49:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:49:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:49:52,634 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:49:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:49:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:49:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-22 01:49:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-22 01:49:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:49:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:49:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:49:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:49:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:49:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:49:52,636 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:49:52,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:49:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:49:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:49:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:49:52,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:49:52,637 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:49:52,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:49:52,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:49:52,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:49:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:49:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:49:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-22 01:49:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-22 01:49:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:49:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:49:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:49:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:49:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:49:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:49:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:49:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:49:52,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:49:52,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:49:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:49:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:49:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:49:52,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:49:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:49:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:49:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:49:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:49:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:49:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:49:52,940 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:49:52,945 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:49:53,989 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2024-11-22 01:49:53,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:49:54,019 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:49:54,019 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:49:54,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:54 BoogieIcfgContainer [2024-11-22 01:49:54,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:49:54,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:49:54,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:49:54,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:49:54,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:51" (1/3) ... [2024-11-22 01:49:54,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c19d122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:54, skipping insertion in model container [2024-11-22 01:49:54,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:52" (2/3) ... [2024-11-22 01:49:54,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c19d122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:54, skipping insertion in model container [2024-11-22 01:49:54,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:54" (3/3) ... [2024-11-22 01:49:54,027 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product31.cil.c [2024-11-22 01:49:54,042 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:49:54,042 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:49:54,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:49:54,122 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;@4223ca87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:49:54,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:49:54,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 587 states, 460 states have (on average 1.682608695652174) internal successors, (774), 481 states have internal predecessors, (774), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 01:49:54,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 01:49:54,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:54,160 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:54,161 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:54,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 450011275, now seen corresponding path program 1 times [2024-11-22 01:49:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:54,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800339012] [2024-11-22 01:49:54,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:54,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:54,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800339012] [2024-11-22 01:49:54,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800339012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:54,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:54,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955134204] [2024-11-22 01:49:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:54,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:54,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:54,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:54,715 INFO L87 Difference]: Start difference. First operand has 587 states, 460 states have (on average 1.682608695652174) internal successors, (774), 481 states have internal predecessors, (774), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:54,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:54,870 INFO L93 Difference]: Finished difference Result 1154 states and 1919 transitions. [2024-11-22 01:49:54,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2024-11-22 01:49:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:54,896 INFO L225 Difference]: With dead ends: 1154 [2024-11-22 01:49:54,896 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:49:54,906 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 [2024-11-22 01:49:54,910 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 5 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2849 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 [2024-11-22 01:49:54,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2849 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:54,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:49:54,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-22 01:49:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6784140969162995) internal successors, (762), 473 states have internal predecessors, (762), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:55,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 955 transitions. [2024-11-22 01:49:55,011 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 955 transitions. Word has length 106 [2024-11-22 01:49:55,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:55,012 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 955 transitions. [2024-11-22 01:49:55,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,014 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 955 transitions. [2024-11-22 01:49:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 01:49:55,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:55,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:55,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:49:55,044 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:55,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:55,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1974609341, now seen corresponding path program 1 times [2024-11-22 01:49:55,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:55,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708525157] [2024-11-22 01:49:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:55,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:55,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:55,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708525157] [2024-11-22 01:49:55,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708525157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:55,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:55,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:55,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196943601] [2024-11-22 01:49:55,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:55,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:55,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:55,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:55,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:55,264 INFO L87 Difference]: Start difference. First operand 579 states and 955 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:55,350 INFO L93 Difference]: Finished difference Result 1140 states and 1887 transitions. [2024-11-22 01:49:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:55,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2024-11-22 01:49:55,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:55,362 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 01:49:55,362 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:49:55,365 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 [2024-11-22 01:49:55,366 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 4 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2828 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 [2024-11-22 01:49:55,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2828 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:55,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:49:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-22 01:49:55,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6762114537444934) internal successors, (761), 473 states have internal predecessors, (761), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:55,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 954 transitions. [2024-11-22 01:49:55,402 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 954 transitions. Word has length 109 [2024-11-22 01:49:55,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:55,402 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 954 transitions. [2024-11-22 01:49:55,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 954 transitions. [2024-11-22 01:49:55,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 01:49:55,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:55,406 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:55,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:49:55,407 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:55,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1927851990, now seen corresponding path program 1 times [2024-11-22 01:49:55,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:55,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970591111] [2024-11-22 01:49:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:55,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:55,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:55,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970591111] [2024-11-22 01:49:55,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970591111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:55,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:55,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:55,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457958523] [2024-11-22 01:49:55,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:55,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:55,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:55,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:55,587 INFO L87 Difference]: Start difference. First operand 579 states and 954 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:55,637 INFO L93 Difference]: Finished difference Result 1140 states and 1886 transitions. [2024-11-22 01:49:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2024-11-22 01:49:55,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:55,644 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 01:49:55,644 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:49:55,646 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 [2024-11-22 01:49:55,648 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 3 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2828 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 [2024-11-22 01:49:55,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2828 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:49:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-22 01:49:55,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6740088105726871) internal successors, (760), 473 states have internal predecessors, (760), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 953 transitions. [2024-11-22 01:49:55,672 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 953 transitions. Word has length 110 [2024-11-22 01:49:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:55,673 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 953 transitions. [2024-11-22 01:49:55,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 953 transitions. [2024-11-22 01:49:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 01:49:55,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:55,688 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:55,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:49:55,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:55,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1635088295, now seen corresponding path program 1 times [2024-11-22 01:49:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:55,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112951511] [2024-11-22 01:49:55,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:55,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:55,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:55,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112951511] [2024-11-22 01:49:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112951511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:55,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793842068] [2024-11-22 01:49:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:55,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:55,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:55,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:55,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:55,817 INFO L87 Difference]: Start difference. First operand 579 states and 953 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:55,861 INFO L93 Difference]: Finished difference Result 1140 states and 1885 transitions. [2024-11-22 01:49:55,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:55,862 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-22 01:49:55,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:55,867 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 01:49:55,867 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:49:55,872 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 [2024-11-22 01:49:55,875 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 2 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2828 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 [2024-11-22 01:49:55,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2828 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:55,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:49:55,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-22 01:49:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.671806167400881) internal successors, (759), 473 states have internal predecessors, (759), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 952 transitions. [2024-11-22 01:49:55,896 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 952 transitions. Word has length 111 [2024-11-22 01:49:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:55,897 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 952 transitions. [2024-11-22 01:49:55,897 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 952 transitions. [2024-11-22 01:49:55,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 01:49:55,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:55,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:55,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:49:55,902 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:55,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1764417458, now seen corresponding path program 1 times [2024-11-22 01:49:55,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:55,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150024515] [2024-11-22 01:49:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:55,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:56,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150024515] [2024-11-22 01:49:56,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150024515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:56,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:56,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:56,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887363534] [2024-11-22 01:49:56,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:56,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:56,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:56,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:56,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:56,021 INFO L87 Difference]: Start difference. First operand 579 states and 952 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:56,065 INFO L93 Difference]: Finished difference Result 1140 states and 1884 transitions. [2024-11-22 01:49:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:56,066 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2024-11-22 01:49:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:56,071 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 01:49:56,071 INFO L226 Difference]: Without dead ends: 579 [2024-11-22 01:49:56,073 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 [2024-11-22 01:49:56,074 INFO L432 NwaCegarLoop]: 944 mSDtfsCounter, 1 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2828 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 [2024-11-22 01:49:56,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2828 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-22 01:49:56,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-22 01:49:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.669603524229075) internal successors, (758), 473 states have internal predecessors, (758), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:56,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 951 transitions. [2024-11-22 01:49:56,090 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 951 transitions. Word has length 112 [2024-11-22 01:49:56,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:56,090 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 951 transitions. [2024-11-22 01:49:56,090 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:56,090 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 951 transitions. [2024-11-22 01:49:56,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 01:49:56,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:56,093 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:56,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:49:56,094 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:56,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:56,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1956418293, now seen corresponding path program 1 times [2024-11-22 01:49:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:56,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88796665] [2024-11-22 01:49:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:56,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:56,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:56,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88796665] [2024-11-22 01:49:56,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88796665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:56,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:49:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882452128] [2024-11-22 01:49:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:56,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:49:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:49:56,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:49:56,341 INFO L87 Difference]: Start difference. First operand 579 states and 951 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:56,494 INFO L93 Difference]: Finished difference Result 1106 states and 1816 transitions. [2024-11-22 01:49:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:49:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-11-22 01:49:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:56,500 INFO L225 Difference]: With dead ends: 1106 [2024-11-22 01:49:56,501 INFO L226 Difference]: Without dead ends: 594 [2024-11-22 01:49:56,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:49:56,504 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 91 mSDsluCounter, 6490 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:56,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7429 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:56,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-22 01:49:56,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 592. [2024-11-22 01:49:56,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 464 states have (on average 1.665948275862069) internal successors, (773), 485 states have internal predecessors, (773), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (97), 93 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-22 01:49:56,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 970 transitions. [2024-11-22 01:49:56,531 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 970 transitions. Word has length 113 [2024-11-22 01:49:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:56,532 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 970 transitions. [2024-11-22 01:49:56,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 970 transitions. [2024-11-22 01:49:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 01:49:56,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:56,537 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:56,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:49:56,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:56,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:56,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1428052692, now seen corresponding path program 1 times [2024-11-22 01:49:56,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:56,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185453052] [2024-11-22 01:49:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:56,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:56,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:56,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185453052] [2024-11-22 01:49:56,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185453052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:56,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:56,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:56,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534227287] [2024-11-22 01:49:56,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:56,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:56,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:56,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:56,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:56,707 INFO L87 Difference]: Start difference. First operand 592 states and 970 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:56,760 INFO L93 Difference]: Finished difference Result 1158 states and 1910 transitions. [2024-11-22 01:49:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:56,761 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2024-11-22 01:49:56,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:56,767 INFO L225 Difference]: With dead ends: 1158 [2024-11-22 01:49:56,767 INFO L226 Difference]: Without dead ends: 573 [2024-11-22 01:49:56,771 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 [2024-11-22 01:49:56,772 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 0 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2830 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 [2024-11-22 01:49:56,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2830 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-22 01:49:56,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2024-11-22 01:49:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 448 states have (on average 1.6607142857142858) internal successors, (744), 467 states have internal predecessors, (744), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 937 transitions. [2024-11-22 01:49:56,805 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 937 transitions. Word has length 113 [2024-11-22 01:49:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:56,805 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 937 transitions. [2024-11-22 01:49:56,806 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 937 transitions. [2024-11-22 01:49:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 01:49:56,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:56,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:56,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:49:56,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:56,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:56,814 INFO L85 PathProgramCache]: Analyzing trace with hash 216184503, now seen corresponding path program 1 times [2024-11-22 01:49:56,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:56,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16576955] [2024-11-22 01:49:56,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:56,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:57,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:57,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16576955] [2024-11-22 01:49:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16576955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:57,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179488139] [2024-11-22 01:49:57,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:57,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:57,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:57,008 INFO L87 Difference]: Start difference. First operand 573 states and 937 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:57,194 INFO L93 Difference]: Finished difference Result 1103 states and 1808 transitions. [2024-11-22 01:49:57,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:57,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-22 01:49:57,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:57,198 INFO L225 Difference]: With dead ends: 1103 [2024-11-22 01:49:57,199 INFO L226 Difference]: Without dead ends: 582 [2024-11-22 01:49:57,200 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 [2024-11-22 01:49:57,201 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 55 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:57,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4441 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-22 01:49:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 573. [2024-11-22 01:49:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 448 states have (on average 1.6517857142857142) internal successors, (740), 467 states have internal predecessors, (740), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:57,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 933 transitions. [2024-11-22 01:49:57,217 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 933 transitions. Word has length 114 [2024-11-22 01:49:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:57,217 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 933 transitions. [2024-11-22 01:49:57,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,217 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 933 transitions. [2024-11-22 01:49:57,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 01:49:57,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:57,221 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:57,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:49:57,221 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:57,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:57,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1193166184, now seen corresponding path program 1 times [2024-11-22 01:49:57,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:57,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774707136] [2024-11-22 01:49:57,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:57,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:57,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774707136] [2024-11-22 01:49:57,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774707136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:57,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:57,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:57,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922853846] [2024-11-22 01:49:57,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:57,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:57,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:57,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:57,362 INFO L87 Difference]: Start difference. First operand 573 states and 933 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:57,506 INFO L93 Difference]: Finished difference Result 1103 states and 1804 transitions. [2024-11-22 01:49:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:57,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2024-11-22 01:49:57,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:57,510 INFO L225 Difference]: With dead ends: 1103 [2024-11-22 01:49:57,510 INFO L226 Difference]: Without dead ends: 582 [2024-11-22 01:49:57,512 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 [2024-11-22 01:49:57,513 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 54 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4441 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 [2024-11-22 01:49:57,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4441 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:57,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-22 01:49:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 573. [2024-11-22 01:49:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 448 states have (on average 1.6428571428571428) internal successors, (736), 467 states have internal predecessors, (736), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 929 transitions. [2024-11-22 01:49:57,532 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 929 transitions. Word has length 115 [2024-11-22 01:49:57,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:57,532 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 929 transitions. [2024-11-22 01:49:57,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 929 transitions. [2024-11-22 01:49:57,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:49:57,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:57,537 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:57,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:49:57,537 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:57,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 434768860, now seen corresponding path program 1 times [2024-11-22 01:49:57,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:57,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372105326] [2024-11-22 01:49:57,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:57,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:57,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:57,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372105326] [2024-11-22 01:49:57,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372105326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:57,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:57,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:57,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297717700] [2024-11-22 01:49:57,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:57,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:57,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:57,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:57,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:57,665 INFO L87 Difference]: Start difference. First operand 573 states and 929 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:57,835 INFO L93 Difference]: Finished difference Result 1103 states and 1800 transitions. [2024-11-22 01:49:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:57,836 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-22 01:49:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:57,842 INFO L225 Difference]: With dead ends: 1103 [2024-11-22 01:49:57,843 INFO L226 Difference]: Without dead ends: 582 [2024-11-22 01:49:57,848 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 [2024-11-22 01:49:57,848 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 53 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4423 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 [2024-11-22 01:49:57,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4423 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:57,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-22 01:49:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 573. [2024-11-22 01:49:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 448 states have (on average 1.6339285714285714) internal successors, (732), 467 states have internal predecessors, (732), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 925 transitions. [2024-11-22 01:49:57,876 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 925 transitions. Word has length 116 [2024-11-22 01:49:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:57,876 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 925 transitions. [2024-11-22 01:49:57,877 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 925 transitions. [2024-11-22 01:49:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:49:57,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:57,881 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:57,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:49:57,881 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:57,882 INFO L85 PathProgramCache]: Analyzing trace with hash -825718692, now seen corresponding path program 1 times [2024-11-22 01:49:57,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:57,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470873659] [2024-11-22 01:49:57,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:57,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:58,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470873659] [2024-11-22 01:49:58,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470873659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:58,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:58,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:49:58,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813832639] [2024-11-22 01:49:58,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:58,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:49:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:49:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:58,086 INFO L87 Difference]: Start difference. First operand 573 states and 925 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:58,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:58,161 INFO L93 Difference]: Finished difference Result 1094 states and 1782 transitions. [2024-11-22 01:49:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:49:58,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2024-11-22 01:49:58,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:58,167 INFO L225 Difference]: With dead ends: 1094 [2024-11-22 01:49:58,168 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 01:49:58,171 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 [2024-11-22 01:49:58,172 INFO L432 NwaCegarLoop]: 914 mSDtfsCounter, 84 mSDsluCounter, 4497 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5411 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 [2024-11-22 01:49:58,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5411 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 01:49:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-22 01:49:58,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 427 states have (on average 1.6346604215456675) internal successors, (698), 446 states have internal predecessors, (698), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 891 transitions. [2024-11-22 01:49:58,192 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 891 transitions. Word has length 116 [2024-11-22 01:49:58,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:58,193 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 891 transitions. [2024-11-22 01:49:58,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 891 transitions. [2024-11-22 01:49:58,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 01:49:58,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:58,197 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:58,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:49:58,198 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:58,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:58,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1729281053, now seen corresponding path program 1 times [2024-11-22 01:49:58,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:58,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426142704] [2024-11-22 01:49:58,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:58,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:58,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426142704] [2024-11-22 01:49:58,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426142704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:58,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:58,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:58,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934971406] [2024-11-22 01:49:58,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:58,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:58,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:58,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:58,360 INFO L87 Difference]: Start difference. First operand 552 states and 891 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:58,438 INFO L93 Difference]: Finished difference Result 1073 states and 1748 transitions. [2024-11-22 01:49:58,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:58,439 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-22 01:49:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:58,444 INFO L225 Difference]: With dead ends: 1073 [2024-11-22 01:49:58,444 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 01:49:58,447 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 [2024-11-22 01:49:58,448 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 17 mSDsluCounter, 3487 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4361 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 [2024-11-22 01:49:58,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4361 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:58,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 01:49:58,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-22 01:49:58,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 427 states have (on average 1.6323185011709602) internal successors, (697), 446 states have internal predecessors, (697), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 890 transitions. [2024-11-22 01:49:58,469 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 890 transitions. Word has length 117 [2024-11-22 01:49:58,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:58,469 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 890 transitions. [2024-11-22 01:49:58,469 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,470 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 890 transitions. [2024-11-22 01:49:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 01:49:58,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:58,473 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:58,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:49:58,474 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:58,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1277619457, now seen corresponding path program 1 times [2024-11-22 01:49:58,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:58,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743046957] [2024-11-22 01:49:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:58,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743046957] [2024-11-22 01:49:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743046957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:58,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24716082] [2024-11-22 01:49:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:58,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:58,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:58,622 INFO L87 Difference]: Start difference. First operand 552 states and 890 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:58,680 INFO L93 Difference]: Finished difference Result 1073 states and 1747 transitions. [2024-11-22 01:49:58,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:58,681 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-22 01:49:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:58,686 INFO L225 Difference]: With dead ends: 1073 [2024-11-22 01:49:58,686 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 01:49:58,688 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 [2024-11-22 01:49:58,689 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 16 mSDsluCounter, 3487 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4361 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 [2024-11-22 01:49:58,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4361 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 01:49:58,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-22 01:49:58,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 427 states have (on average 1.629976580796253) internal successors, (696), 446 states have internal predecessors, (696), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 889 transitions. [2024-11-22 01:49:58,706 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 889 transitions. Word has length 118 [2024-11-22 01:49:58,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:58,707 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 889 transitions. [2024-11-22 01:49:58,707 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, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 889 transitions. [2024-11-22 01:49:58,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:49:58,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:58,710 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:58,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:49:58,711 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:58,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:58,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1758411684, now seen corresponding path program 1 times [2024-11-22 01:49:58,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:58,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486794485] [2024-11-22 01:49:58,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:58,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:58,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:58,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486794485] [2024-11-22 01:49:58,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486794485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:58,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:58,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:58,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86410624] [2024-11-22 01:49:58,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:58,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:58,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:58,809 INFO L87 Difference]: Start difference. First operand 552 states and 889 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:58,843 INFO L93 Difference]: Finished difference Result 1073 states and 1746 transitions. [2024-11-22 01:49:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:58,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-11-22 01:49:58,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:58,848 INFO L225 Difference]: With dead ends: 1073 [2024-11-22 01:49:58,848 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 01:49:58,851 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 [2024-11-22 01:49:58,851 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 9 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2640 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 [2024-11-22 01:49:58,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2640 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:58,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 01:49:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-22 01:49:58,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 427 states have (on average 1.6276346604215457) internal successors, (695), 446 states have internal predecessors, (695), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:58,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 888 transitions. [2024-11-22 01:49:58,869 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 888 transitions. Word has length 119 [2024-11-22 01:49:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:58,869 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 888 transitions. [2024-11-22 01:49:58,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:58,870 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 888 transitions. [2024-11-22 01:49:58,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:49:58,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:58,873 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:58,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:49:58,873 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:58,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1765822046, now seen corresponding path program 1 times [2024-11-22 01:49:58,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:58,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436304744] [2024-11-22 01:49:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:58,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:49:59,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:59,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436304744] [2024-11-22 01:49:59,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436304744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:59,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:59,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:49:59,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236954156] [2024-11-22 01:49:59,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:59,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:49:59,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:49:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:49:59,143 INFO L87 Difference]: Start difference. First operand 552 states and 888 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:59,274 INFO L93 Difference]: Finished difference Result 1067 states and 1734 transitions. [2024-11-22 01:49:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:49:59,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-22 01:49:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:59,282 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 01:49:59,282 INFO L226 Difference]: Without dead ends: 552 [2024-11-22 01:49:59,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:49:59,288 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 5 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:59,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7827 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-22 01:49:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-11-22 01:49:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 427 states have (on average 1.6252927400468384) internal successors, (694), 446 states have internal predecessors, (694), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:49:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 887 transitions. [2024-11-22 01:49:59,309 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 887 transitions. Word has length 119 [2024-11-22 01:49:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:59,309 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 887 transitions. [2024-11-22 01:49:59,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:49:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 887 transitions. [2024-11-22 01:49:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:49:59,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:59,313 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:59,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:49:59,313 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:59,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:59,314 INFO L85 PathProgramCache]: Analyzing trace with hash -230288650, now seen corresponding path program 1 times [2024-11-22 01:49:59,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:59,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805845766] [2024-11-22 01:49:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:59,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:49:59,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:59,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805845766] [2024-11-22 01:49:59,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805845766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:49:59,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172817369] [2024-11-22 01:49:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:59,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:49:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:49:59,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:49:59,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:49:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:59,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:49:59,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:49:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:49:59,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:49:59,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172817369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:59,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:49:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:49:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567357758] [2024-11-22 01:49:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:59,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:49:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:59,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:49:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:59,765 INFO L87 Difference]: Start difference. First operand 552 states and 887 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:59,823 INFO L93 Difference]: Finished difference Result 1561 states and 2570 transitions. [2024-11-22 01:49:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:49:59,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-11-22 01:49:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:59,830 INFO L225 Difference]: With dead ends: 1561 [2024-11-22 01:49:59,831 INFO L226 Difference]: Without dead ends: 1054 [2024-11-22 01:49:59,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:59,834 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 828 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 2473 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 [2024-11-22 01:49:59,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 2473 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:59,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2024-11-22 01:49:59,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1034. [2024-11-22 01:49:59,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 803 states have (on average 1.6500622665006226) internal successors, (1325), 835 states have internal predecessors, (1325), 184 states have call successors, (184), 46 states have call predecessors, (184), 46 states have return successors, (185), 178 states have call predecessors, (185), 179 states have call successors, (185) [2024-11-22 01:49:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1694 transitions. [2024-11-22 01:49:59,904 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1694 transitions. Word has length 120 [2024-11-22 01:49:59,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:59,905 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1694 transitions. [2024-11-22 01:49:59,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:49:59,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1694 transitions. [2024-11-22 01:49:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:49:59,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:59,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:59,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:50:00,108 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,SelfDestructingSolverStorable15 [2024-11-22 01:50:00,109 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:00,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1155914744, now seen corresponding path program 1 times [2024-11-22 01:50:00,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:00,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958194204] [2024-11-22 01:50:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:00,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:50:00,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958194204] [2024-11-22 01:50:00,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958194204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:00,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972091359] [2024-11-22 01:50:00,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:00,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:00,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:00,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:50:00,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:50:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:00,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:00,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:00,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:00,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972091359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:00,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:00,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:50:00,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502752943] [2024-11-22 01:50:00,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:00,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:00,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:00,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:00,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:00,536 INFO L87 Difference]: Start difference. First operand 1034 states and 1694 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:00,607 INFO L93 Difference]: Finished difference Result 3002 states and 4992 transitions. [2024-11-22 01:50:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2024-11-22 01:50:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:00,623 INFO L225 Difference]: With dead ends: 3002 [2024-11-22 01:50:00,623 INFO L226 Difference]: Without dead ends: 2013 [2024-11-22 01:50:00,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:00,629 INFO L432 NwaCegarLoop]: 1006 mSDtfsCounter, 871 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:00,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1833 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2024-11-22 01:50:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 2011. [2024-11-22 01:50:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 1563 states have (on average 1.6615483045425463) internal successors, (2597), 1623 states have internal predecessors, (2597), 358 states have call successors, (358), 87 states have call predecessors, (358), 89 states have return successors, (384), 352 states have call predecessors, (384), 353 states have call successors, (384) [2024-11-22 01:50:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 3339 transitions. [2024-11-22 01:50:00,702 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 3339 transitions. Word has length 120 [2024-11-22 01:50:00,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:00,702 INFO L471 AbstractCegarLoop]: Abstraction has 2011 states and 3339 transitions. [2024-11-22 01:50:00,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 3339 transitions. [2024-11-22 01:50:00,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 01:50:00,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:00,706 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:00,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:50:00,906 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,SelfDestructingSolverStorable16 [2024-11-22 01:50:00,907 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:00,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:00,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1473476643, now seen corresponding path program 1 times [2024-11-22 01:50:00,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:00,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571524869] [2024-11-22 01:50:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:00,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:50:01,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571524869] [2024-11-22 01:50:01,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571524869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290814279] [2024-11-22 01:50:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:01,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:01,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:50:01,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:50:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:01,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:01,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:01,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:01,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290814279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:01,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:01,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:50:01,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694048885] [2024-11-22 01:50:01,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:01,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:01,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:01,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:01,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:01,352 INFO L87 Difference]: Start difference. First operand 2011 states and 3339 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:01,479 INFO L93 Difference]: Finished difference Result 5935 states and 9968 transitions. [2024-11-22 01:50:01,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:01,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2024-11-22 01:50:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:01,511 INFO L225 Difference]: With dead ends: 5935 [2024-11-22 01:50:01,512 INFO L226 Difference]: Without dead ends: 3969 [2024-11-22 01:50:01,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:01,524 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 870 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:01,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1789 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:01,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3969 states. [2024-11-22 01:50:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3969 to 3966. [2024-11-22 01:50:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3084 states have (on average 1.6669909208819715) internal successors, (5141), 3200 states have internal predecessors, (5141), 706 states have call successors, (706), 169 states have call predecessors, (706), 175 states have return successors, (810), 700 states have call predecessors, (810), 701 states have call successors, (810) [2024-11-22 01:50:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 6657 transitions. [2024-11-22 01:50:01,660 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 6657 transitions. Word has length 121 [2024-11-22 01:50:01,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:01,662 INFO L471 AbstractCegarLoop]: Abstraction has 3966 states and 6657 transitions. [2024-11-22 01:50:01,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:01,663 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 6657 transitions. [2024-11-22 01:50:01,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 01:50:01,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:01,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:01,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:50:01,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 01:50:01,867 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:01,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1567002470, now seen corresponding path program 1 times [2024-11-22 01:50:01,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:01,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693330196] [2024-11-22 01:50:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:50:02,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:02,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693330196] [2024-11-22 01:50:02,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693330196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:02,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316356168] [2024-11-22 01:50:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:02,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:50:02,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:50:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:02,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:02,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:02,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:02,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316356168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:02,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:02,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:50:02,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700692659] [2024-11-22 01:50:02,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:02,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:02,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:02,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:02,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:02,285 INFO L87 Difference]: Start difference. First operand 3966 states and 6657 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:02,484 INFO L93 Difference]: Finished difference Result 11802 states and 20045 transitions. [2024-11-22 01:50:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:02,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2024-11-22 01:50:02,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:02,537 INFO L225 Difference]: With dead ends: 11802 [2024-11-22 01:50:02,538 INFO L226 Difference]: Without dead ends: 7881 [2024-11-22 01:50:02,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:02,624 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 868 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:02,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 1783 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:02,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-22 01:50:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7877. [2024-11-22 01:50:02,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 6127 states have (on average 1.669169250856863) internal successors, (10227), 6355 states have internal predecessors, (10227), 1402 states have call successors, (1402), 333 states have call predecessors, (1402), 347 states have return successors, (1746), 1396 states have call predecessors, (1746), 1397 states have call successors, (1746) [2024-11-22 01:50:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 13375 transitions. [2024-11-22 01:50:03,044 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 13375 transitions. Word has length 122 [2024-11-22 01:50:03,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:03,045 INFO L471 AbstractCegarLoop]: Abstraction has 7877 states and 13375 transitions. [2024-11-22 01:50:03,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 13375 transitions. [2024-11-22 01:50:03,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 01:50:03,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:03,048 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:03,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 01:50:03,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:03,249 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:03,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:03,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1332570555, now seen corresponding path program 1 times [2024-11-22 01:50:03,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:03,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587043991] [2024-11-22 01:50:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:03,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:50:03,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:03,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587043991] [2024-11-22 01:50:03,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587043991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:03,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899501391] [2024-11-22 01:50:03,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:03,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:03,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:03,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:50:03,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:50:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:03,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:03,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:03,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:03,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899501391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:03,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:03,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:50:03,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598821343] [2024-11-22 01:50:03,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:03,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:03,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:03,720 INFO L87 Difference]: Start difference. First operand 7877 states and 13375 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:04,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:04,213 INFO L93 Difference]: Finished difference Result 23537 states and 40610 transitions. [2024-11-22 01:50:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:04,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2024-11-22 01:50:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:04,335 INFO L225 Difference]: With dead ends: 23537 [2024-11-22 01:50:04,335 INFO L226 Difference]: Without dead ends: 15705 [2024-11-22 01:50:04,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:04,382 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 867 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:04,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1775 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15705 states. [2024-11-22 01:50:04,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15705 to 15700. [2024-11-22 01:50:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15700 states, 12214 states have (on average 1.6696413951203537) internal successors, (20393), 12666 states have internal predecessors, (20393), 2794 states have call successors, (2794), 661 states have call predecessors, (2794), 691 states have return successors, (3894), 2788 states have call predecessors, (3894), 2789 states have call successors, (3894) [2024-11-22 01:50:05,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15700 states to 15700 states and 27081 transitions. [2024-11-22 01:50:05,144 INFO L78 Accepts]: Start accepts. Automaton has 15700 states and 27081 transitions. Word has length 123 [2024-11-22 01:50:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:05,145 INFO L471 AbstractCegarLoop]: Abstraction has 15700 states and 27081 transitions. [2024-11-22 01:50:05,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 15700 states and 27081 transitions. [2024-11-22 01:50:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 01:50:05,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:05,151 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:05,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:50:05,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:05,352 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:05,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1639855420, now seen corresponding path program 1 times [2024-11-22 01:50:05,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:05,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995573417] [2024-11-22 01:50:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:50:05,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:05,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995573417] [2024-11-22 01:50:05,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995573417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:50:05,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609953122] [2024-11-22 01:50:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:05,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:05,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:50:05,449 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:50:05,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:50:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:05,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:50:05,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:50:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 01:50:05,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:50:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609953122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:50:05,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:50:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547534089] [2024-11-22 01:50:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:05,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:50:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:05,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:50:05,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:05,759 INFO L87 Difference]: Start difference. First operand 15700 states and 27081 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:07,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:07,019 INFO L93 Difference]: Finished difference Result 47008 states and 83194 transitions. [2024-11-22 01:50:07,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:50:07,020 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 124 [2024-11-22 01:50:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:07,440 INFO L225 Difference]: With dead ends: 47008 [2024-11-22 01:50:07,440 INFO L226 Difference]: Without dead ends: 31345 [2024-11-22 01:50:07,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:50:07,548 INFO L432 NwaCegarLoop]: 999 mSDtfsCounter, 865 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:07,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1835 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:07,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31345 states. [2024-11-22 01:50:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31345 to 31339. [2024-11-22 01:50:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31339 states, 24382 states have (on average 1.669018128127307) internal successors, (40694), 25282 states have internal predecessors, (40694), 5578 states have call successors, (5578), 1317 states have call predecessors, (5578), 1378 states have return successors, (9161), 5571 states have call predecessors, (9161), 5573 states have call successors, (9161) [2024-11-22 01:50:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31339 states to 31339 states and 55433 transitions. [2024-11-22 01:50:09,200 INFO L78 Accepts]: Start accepts. Automaton has 31339 states and 55433 transitions. Word has length 124 [2024-11-22 01:50:09,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:09,202 INFO L471 AbstractCegarLoop]: Abstraction has 31339 states and 55433 transitions. [2024-11-22 01:50:09,203 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, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:50:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 31339 states and 55433 transitions. [2024-11-22 01:50:09,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-22 01:50:09,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:09,221 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:09,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:50:09,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:50:09,423 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:09,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 886821755, now seen corresponding path program 1 times [2024-11-22 01:50:09,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:09,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046297200] [2024-11-22 01:50:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:09,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:09,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046297200] [2024-11-22 01:50:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046297200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:09,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:09,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:09,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017120752] [2024-11-22 01:50:09,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:09,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:09,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:09,580 INFO L87 Difference]: Start difference. First operand 31339 states and 55433 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:11,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:11,916 INFO L93 Difference]: Finished difference Result 62889 states and 115143 transitions. [2024-11-22 01:50:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:50:11,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 190 [2024-11-22 01:50:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:12,260 INFO L225 Difference]: With dead ends: 62889 [2024-11-22 01:50:12,260 INFO L226 Difference]: Without dead ends: 31595 [2024-11-22 01:50:12,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:12,394 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 881 mSDsluCounter, 2382 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:12,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 3251 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:50:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31595 states. [2024-11-22 01:50:13,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31595 to 31595. [2024-11-22 01:50:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31595 states, 24574 states have (on average 1.6637909986164239) internal successors, (40886), 25474 states have internal predecessors, (40886), 5578 states have call successors, (5578), 1381 states have call predecessors, (5578), 1442 states have return successors, (9225), 5571 states have call predecessors, (9225), 5573 states have call successors, (9225) [2024-11-22 01:50:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31595 states to 31595 states and 55689 transitions. [2024-11-22 01:50:14,173 INFO L78 Accepts]: Start accepts. Automaton has 31595 states and 55689 transitions. Word has length 190 [2024-11-22 01:50:14,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:14,175 INFO L471 AbstractCegarLoop]: Abstraction has 31595 states and 55689 transitions. [2024-11-22 01:50:14,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:14,176 INFO L276 IsEmpty]: Start isEmpty. Operand 31595 states and 55689 transitions. [2024-11-22 01:50:14,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-22 01:50:14,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:14,196 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:14,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:50:14,196 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:14,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:14,196 INFO L85 PathProgramCache]: Analyzing trace with hash 161637215, now seen corresponding path program 1 times [2024-11-22 01:50:14,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:14,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792537213] [2024-11-22 01:50:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:14,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:14,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:14,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792537213] [2024-11-22 01:50:14,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792537213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:14,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:14,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:14,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718166207] [2024-11-22 01:50:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:14,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:14,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:14,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:14,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:14,546 INFO L87 Difference]: Start difference. First operand 31595 states and 55689 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:16,456 INFO L93 Difference]: Finished difference Result 63465 states and 115591 transitions. [2024-11-22 01:50:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:50:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2024-11-22 01:50:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:16,866 INFO L225 Difference]: With dead ends: 63465 [2024-11-22 01:50:16,866 INFO L226 Difference]: Without dead ends: 31915 [2024-11-22 01:50:17,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:17,006 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 880 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:17,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 3257 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:50:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31915 states. [2024-11-22 01:50:18,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31915 to 31915. [2024-11-22 01:50:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31915 states, 24830 states have (on average 1.656947241240435) internal successors, (41142), 25730 states have internal predecessors, (41142), 5578 states have call successors, (5578), 1445 states have call predecessors, (5578), 1506 states have return successors, (9289), 5571 states have call predecessors, (9289), 5573 states have call successors, (9289) [2024-11-22 01:50:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31915 states to 31915 states and 56009 transitions. [2024-11-22 01:50:18,526 INFO L78 Accepts]: Start accepts. Automaton has 31915 states and 56009 transitions. Word has length 191 [2024-11-22 01:50:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:18,527 INFO L471 AbstractCegarLoop]: Abstraction has 31915 states and 56009 transitions. [2024-11-22 01:50:18,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 31915 states and 56009 transitions. [2024-11-22 01:50:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-22 01:50:18,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:18,549 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:18,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:50:18,549 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:18,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash 8861951, now seen corresponding path program 1 times [2024-11-22 01:50:18,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:18,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901874505] [2024-11-22 01:50:18,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:18,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:18,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901874505] [2024-11-22 01:50:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901874505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:18,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644001983] [2024-11-22 01:50:18,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:18,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:18,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:18,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:18,965 INFO L87 Difference]: Start difference. First operand 31915 states and 56009 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:20,502 INFO L93 Difference]: Finished difference Result 64169 states and 116167 transitions. [2024-11-22 01:50:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:50:20,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 192 [2024-11-22 01:50:20,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:20,835 INFO L225 Difference]: With dead ends: 64169 [2024-11-22 01:50:20,835 INFO L226 Difference]: Without dead ends: 32299 [2024-11-22 01:50:21,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:21,034 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 880 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:21,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 3257 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:50:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32299 states. [2024-11-22 01:50:22,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32299 to 32299. [2024-11-22 01:50:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32299 states, 25150 states have (on average 1.6485884691848907) internal successors, (41462), 26050 states have internal predecessors, (41462), 5578 states have call successors, (5578), 1509 states have call predecessors, (5578), 1570 states have return successors, (9353), 5571 states have call predecessors, (9353), 5573 states have call successors, (9353) [2024-11-22 01:50:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32299 states to 32299 states and 56393 transitions. [2024-11-22 01:50:22,739 INFO L78 Accepts]: Start accepts. Automaton has 32299 states and 56393 transitions. Word has length 192 [2024-11-22 01:50:22,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 32299 states and 56393 transitions. [2024-11-22 01:50:22,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 32299 states and 56393 transitions. [2024-11-22 01:50:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-22 01:50:22,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:22,752 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:22,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 01:50:22,753 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:22,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:22,753 INFO L85 PathProgramCache]: Analyzing trace with hash 420905059, now seen corresponding path program 1 times [2024-11-22 01:50:22,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389508247] [2024-11-22 01:50:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:22,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:22,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389508247] [2024-11-22 01:50:22,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389508247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:22,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:22,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:22,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526732000] [2024-11-22 01:50:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:22,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:22,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:22,886 INFO L87 Difference]: Start difference. First operand 32299 states and 56393 transitions. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:24,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:24,562 INFO L93 Difference]: Finished difference Result 65001 states and 116871 transitions. [2024-11-22 01:50:24,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:50:24,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 193 [2024-11-22 01:50:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:24,859 INFO L225 Difference]: With dead ends: 65001 [2024-11-22 01:50:24,859 INFO L226 Difference]: Without dead ends: 32747 [2024-11-22 01:50:25,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:25,034 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 880 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 3257 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:25,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 3257 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:50:25,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32747 states. [2024-11-22 01:50:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32747 to 32747. [2024-11-22 01:50:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32747 states, 25534 states have (on average 1.6388344951828935) internal successors, (41846), 26434 states have internal predecessors, (41846), 5578 states have call successors, (5578), 1573 states have call predecessors, (5578), 1634 states have return successors, (9417), 5571 states have call predecessors, (9417), 5573 states have call successors, (9417) [2024-11-22 01:50:26,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32747 states to 32747 states and 56841 transitions. [2024-11-22 01:50:26,764 INFO L78 Accepts]: Start accepts. Automaton has 32747 states and 56841 transitions. Word has length 193 [2024-11-22 01:50:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:26,765 INFO L471 AbstractCegarLoop]: Abstraction has 32747 states and 56841 transitions. [2024-11-22 01:50:26,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:26,765 INFO L276 IsEmpty]: Start isEmpty. Operand 32747 states and 56841 transitions. [2024-11-22 01:50:26,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-22 01:50:26,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:26,778 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:26,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 01:50:26,779 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:26,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:26,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1162448515, now seen corresponding path program 1 times [2024-11-22 01:50:26,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:26,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278851147] [2024-11-22 01:50:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:27,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:27,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278851147] [2024-11-22 01:50:27,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278851147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:27,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:27,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:50:27,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782826095] [2024-11-22 01:50:27,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:27,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:50:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:50:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:50:27,066 INFO L87 Difference]: Start difference. First operand 32747 states and 56841 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:50:36,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:36,769 INFO L93 Difference]: Finished difference Result 145482 states and 280416 transitions. [2024-11-22 01:50:36,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-22 01:50:36,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) Word has length 194 [2024-11-22 01:50:36,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:37,909 INFO L225 Difference]: With dead ends: 145482 [2024-11-22 01:50:37,909 INFO L226 Difference]: Without dead ends: 112780 [2024-11-22 01:50:38,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-22 01:50:38,429 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 2801 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 10900 mSolverCounterSat, 733 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2918 SdHoareTripleChecker+Valid, 5022 SdHoareTripleChecker+Invalid, 11633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 733 IncrementalHoareTripleChecker+Valid, 10900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:38,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2918 Valid, 5022 Invalid, 11633 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [733 Valid, 10900 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-22 01:50:38,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112780 states. [2024-11-22 01:50:43,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112780 to 110419. [2024-11-22 01:50:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110419 states, 83907 states have (on average 1.6213307590546677) internal successors, (136041), 87365 states have internal predecessors, (136041), 21004 states have call successors, (21004), 4710 states have call predecessors, (21004), 5507 states have return successors, (50154), 21479 states have call predecessors, (50154), 20999 states have call successors, (50154) [2024-11-22 01:50:44,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110419 states to 110419 states and 207199 transitions. [2024-11-22 01:50:44,834 INFO L78 Accepts]: Start accepts. Automaton has 110419 states and 207199 transitions. Word has length 194 [2024-11-22 01:50:44,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:44,835 INFO L471 AbstractCegarLoop]: Abstraction has 110419 states and 207199 transitions. [2024-11-22 01:50:44,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 8 states have internal predecessors, (122), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:50:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 110419 states and 207199 transitions. [2024-11-22 01:50:44,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-22 01:50:44,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:44,918 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:44,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 01:50:44,918 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:44,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:44,919 INFO L85 PathProgramCache]: Analyzing trace with hash 812558137, now seen corresponding path program 1 times [2024-11-22 01:50:44,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:44,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488990327] [2024-11-22 01:50:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:44,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 01:50:45,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:45,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488990327] [2024-11-22 01:50:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488990327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:45,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:50:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131543430] [2024-11-22 01:50:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:45,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:50:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:50:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:50:45,160 INFO L87 Difference]: Start difference. First operand 110419 states and 207199 transitions. Second operand has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:48,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:48,424 INFO L93 Difference]: Finished difference Result 142809 states and 263423 transitions. [2024-11-22 01:50:48,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 01:50:48,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 197 [2024-11-22 01:50:48,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:48,733 INFO L225 Difference]: With dead ends: 142809 [2024-11-22 01:50:48,733 INFO L226 Difference]: Without dead ends: 32424 [2024-11-22 01:50:49,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:49,551 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 7 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:49,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6047 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:50:49,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32424 states. [2024-11-22 01:50:50,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32424 to 32424. [2024-11-22 01:50:50,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32424 states, 25339 states have (on average 1.6385413789020877) internal successors, (41519), 26239 states have internal predecessors, (41519), 5450 states have call successors, (5450), 1573 states have call predecessors, (5450), 1634 states have return successors, (9289), 5443 states have call predecessors, (9289), 5445 states have call successors, (9289) [2024-11-22 01:50:51,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32424 states to 32424 states and 56258 transitions. [2024-11-22 01:50:51,207 INFO L78 Accepts]: Start accepts. Automaton has 32424 states and 56258 transitions. Word has length 197 [2024-11-22 01:50:51,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:51,207 INFO L471 AbstractCegarLoop]: Abstraction has 32424 states and 56258 transitions. [2024-11-22 01:50:51,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:50:51,207 INFO L276 IsEmpty]: Start isEmpty. Operand 32424 states and 56258 transitions. [2024-11-22 01:50:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 01:50:51,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:51,219 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:50:51,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 01:50:51,219 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:51,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1245670720, now seen corresponding path program 1 times [2024-11-22 01:50:51,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:51,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079241925] [2024-11-22 01:50:51,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:51,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-22 01:50:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079241925] [2024-11-22 01:50:51,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079241925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:51,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:51,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:50:51,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481702746] [2024-11-22 01:50:51,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:51,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:50:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:50:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:50:51,751 INFO L87 Difference]: Start difference. First operand 32424 states and 56258 transitions. Second operand has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-22 01:50:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:54,637 INFO L93 Difference]: Finished difference Result 65062 states and 115648 transitions. [2024-11-22 01:50:54,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:50:54,638 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.333333333333334) internal successors, (129), 8 states have internal predecessors, (129), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 202 [2024-11-22 01:50:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted.