./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product01.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 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:00:19,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:00:19,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:00:19,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:00:19,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:00:19,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:00:19,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:00:19,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:00:19,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:00:19,471 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:00:19,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:00:19,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:00:19,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:00:19,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:00:19,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:00:19,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:00:19,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:00:19,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:00:19,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:00:19,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:00:19,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:00:19,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:00:19,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:00:19,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:00:19,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:00:19,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:00:19,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:00:19,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:00:19,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:00:19,481 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:00:19,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:00:19,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:00:19,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:00:19,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:00:19,482 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:00:19,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:00:19,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:00:19,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:00:19,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:00:19,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:00:19,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:00:19,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:00:19,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af [2024-11-18 14:00:19,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:00:19,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:00:19,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:00:19,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:00:19,756 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:00:19,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2024-11-18 14:00:21,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:00:21,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:00:21,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2024-11-18 14:00:21,572 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53832b61e/88c93e19e02f40b7bcb74c18f6dae052/FLAG08bfcceea [2024-11-18 14:00:21,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53832b61e/88c93e19e02f40b7bcb74c18f6dae052 [2024-11-18 14:00:21,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:00:21,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:00:21,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:00:21,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:00:21,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:00:21,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:21" (1/1) ... [2024-11-18 14:00:21,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae5f986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:21, skipping insertion in model container [2024-11-18 14:00:21,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:00:21" (1/1) ... [2024-11-18 14:00:21,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:00:21,845 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2024-11-18 14:00:22,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:00:22,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:00:22,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-18 14:00:22,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [57] [2024-11-18 14:00:22,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [178] [2024-11-18 14:00:22,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [192] [2024-11-18 14:00:22,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [375] [2024-11-18 14:00:22,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2024-11-18 14:00:22,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1101] [2024-11-18 14:00:22,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2529] [2024-11-18 14:00:22,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2620] [2024-11-18 14:00:22,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2655] [2024-11-18 14:00:22,168 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2024-11-18 14:00:22,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:00:22,329 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:00:22,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22 WrapperNode [2024-11-18 14:00:22,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:00:22,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:00:22,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:00:22,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:00:22,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,411 INFO L138 Inliner]: procedures = 88, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 753 [2024-11-18 14:00:22,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:00:22,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:00:22,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:00:22,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:00:22,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,459 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-18 14:00:22,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,521 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:00:22,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:00:22,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:00:22,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:00:22,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (1/1) ... [2024-11-18 14:00:22,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:00:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:00:22,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:00:22,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:00:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:00:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 14:00:22,629 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 14:00:22,629 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 14:00:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 14:00:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 14:00:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 14:00:22,630 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 14:00:22,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 14:00:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:00:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:00:22,631 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:00:22,631 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:00:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 14:00:22,632 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 14:00:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:00:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:00:22,633 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 14:00:22,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 14:00:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 14:00:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 14:00:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 14:00:22,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 14:00:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 14:00:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 14:00:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 14:00:22,635 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 14:00:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 14:00:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 14:00:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 14:00:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 14:00:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 14:00:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 14:00:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:00:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:00:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:00:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:00:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:00:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:00:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:00:22,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 14:00:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 14:00:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 14:00:22,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 14:00:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:00:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:00:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 14:00:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 14:00:22,841 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:00:22,843 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:00:24,093 INFO L? ?]: Removed 409 outVars from TransFormulas that were not future-live. [2024-11-18 14:00:24,093 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:00:24,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:00:24,136 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:00:24,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:24 BoogieIcfgContainer [2024-11-18 14:00:24,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:00:24,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:00:24,142 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:00:24,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:00:24,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:00:21" (1/3) ... [2024-11-18 14:00:24,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30edad26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:24, skipping insertion in model container [2024-11-18 14:00:24,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:00:22" (2/3) ... [2024-11-18 14:00:24,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30edad26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:00:24, skipping insertion in model container [2024-11-18 14:00:24,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:00:24" (3/3) ... [2024-11-18 14:00:24,150 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.c [2024-11-18 14:00:24,167 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:00:24,168 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:00:24,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:00:24,273 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;@1610ef93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:00:24,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:00:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 409 states have (on average 1.7163814180929096) internal successors, (702), 430 states have internal predecessors, (702), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-18 14:00:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:00:24,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:24,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:24,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:24,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash -686935090, now seen corresponding path program 1 times [2024-11-18 14:00:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:24,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606032201] [2024-11-18 14:00:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606032201] [2024-11-18 14:00:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606032201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:24,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:24,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:24,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77751589] [2024-11-18 14:00:24,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:25,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:25,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:25,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:25,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,034 INFO L87 Difference]: Start difference. First operand has 517 states, 409 states have (on average 1.7163814180929096) internal successors, (702), 430 states have internal predecessors, (702), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:25,196 INFO L93 Difference]: Finished difference Result 1014 states and 1723 transitions. [2024-11-18 14:00:25,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:25,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-18 14:00:25,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:25,222 INFO L225 Difference]: With dead ends: 1014 [2024-11-18 14:00:25,222 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:00:25,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,231 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 5 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:25,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2555 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:25,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:00:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:00:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 403 states have (on average 1.7121588089330024) internal successors, (690), 422 states have internal predecessors, (690), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 857 transitions. [2024-11-18 14:00:25,321 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 857 transitions. Word has length 74 [2024-11-18 14:00:25,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:25,322 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 857 transitions. [2024-11-18 14:00:25,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,323 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 857 transitions. [2024-11-18 14:00:25,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:00:25,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:25,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:25,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:00:25,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:25,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash -43391832, now seen corresponding path program 1 times [2024-11-18 14:00:25,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:25,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140512656] [2024-11-18 14:00:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:25,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:25,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140512656] [2024-11-18 14:00:25,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140512656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:25,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:25,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:25,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516035413] [2024-11-18 14:00:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:25,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,548 INFO L87 Difference]: Start difference. First operand 509 states and 857 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:25,629 INFO L93 Difference]: Finished difference Result 1000 states and 1691 transitions. [2024-11-18 14:00:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:25,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-11-18 14:00:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:25,635 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:00:25,635 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:00:25,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,641 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 4 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:25,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2534 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:25,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:00:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:00:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 403 states have (on average 1.7096774193548387) internal successors, (689), 422 states have internal predecessors, (689), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:25,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 856 transitions. [2024-11-18 14:00:25,676 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 856 transitions. Word has length 77 [2024-11-18 14:00:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:25,676 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 856 transitions. [2024-11-18 14:00:25,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 856 transitions. [2024-11-18 14:00:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 14:00:25,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:25,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:25,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:00:25,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:25,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:25,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1227611454, now seen corresponding path program 1 times [2024-11-18 14:00:25,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:25,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041949607] [2024-11-18 14:00:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:25,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:25,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:25,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041949607] [2024-11-18 14:00:25,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041949607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:25,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:25,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:25,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815435130] [2024-11-18 14:00:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:25,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:25,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:25,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,874 INFO L87 Difference]: Start difference. First operand 509 states and 856 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:25,936 INFO L93 Difference]: Finished difference Result 1000 states and 1690 transitions. [2024-11-18 14:00:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:25,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-18 14:00:25,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:25,942 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:00:25,942 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:00:25,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:25,946 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 3 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:25,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2534 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:00:25,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:00:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 403 states have (on average 1.7071960297766748) internal successors, (688), 422 states have internal predecessors, (688), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 855 transitions. [2024-11-18 14:00:25,977 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 855 transitions. Word has length 78 [2024-11-18 14:00:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:25,979 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 855 transitions. [2024-11-18 14:00:25,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 855 transitions. [2024-11-18 14:00:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:00:25,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:25,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:25,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:00:25,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:25,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1865221860, now seen corresponding path program 1 times [2024-11-18 14:00:25,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:25,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808227539] [2024-11-18 14:00:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:26,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:26,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:26,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808227539] [2024-11-18 14:00:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808227539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430783093] [2024-11-18 14:00:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:26,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:26,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:26,155 INFO L87 Difference]: Start difference. First operand 509 states and 855 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:26,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:26,209 INFO L93 Difference]: Finished difference Result 1000 states and 1689 transitions. [2024-11-18 14:00:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:26,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-18 14:00:26,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:26,217 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:00:26,217 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:00:26,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:26,222 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 2 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:26,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2534 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:26,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:00:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:00:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 403 states have (on average 1.7047146401985112) internal successors, (687), 422 states have internal predecessors, (687), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 854 transitions. [2024-11-18 14:00:26,250 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 854 transitions. Word has length 79 [2024-11-18 14:00:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:26,251 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 854 transitions. [2024-11-18 14:00:26,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:26,251 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 854 transitions. [2024-11-18 14:00:26,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:00:26,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:26,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:00:26,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:26,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash 47522170, now seen corresponding path program 1 times [2024-11-18 14:00:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:26,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732111840] [2024-11-18 14:00:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732111840] [2024-11-18 14:00:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732111840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:26,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:26,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:26,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341305964] [2024-11-18 14:00:26,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:26,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:26,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:26,421 INFO L87 Difference]: Start difference. First operand 509 states and 854 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:26,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:26,469 INFO L93 Difference]: Finished difference Result 1000 states and 1688 transitions. [2024-11-18 14:00:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:26,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2024-11-18 14:00:26,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:26,475 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:00:26,475 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:00:26,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:26,480 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 1 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:26,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2534 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:26,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:00:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:00:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 403 states have (on average 1.7022332506203475) internal successors, (686), 422 states have internal predecessors, (686), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 853 transitions. [2024-11-18 14:00:26,503 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 853 transitions. Word has length 80 [2024-11-18 14:00:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:26,504 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 853 transitions. [2024-11-18 14:00:26,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 853 transitions. [2024-11-18 14:00:26,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:00:26,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:26,507 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:26,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:00:26,508 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:26,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:26,508 INFO L85 PathProgramCache]: Analyzing trace with hash -575379168, now seen corresponding path program 1 times [2024-11-18 14:00:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:26,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967221460] [2024-11-18 14:00:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:26,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:26,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:26,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:26,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967221460] [2024-11-18 14:00:26,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967221460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:26,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:26,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:00:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10640025] [2024-11-18 14:00:26,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:26,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:00:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:26,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:00:26,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:00:26,771 INFO L87 Difference]: Start difference. First operand 509 states and 853 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:26,903 INFO L93 Difference]: Finished difference Result 966 states and 1620 transitions. [2024-11-18 14:00:26,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:00:26,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2024-11-18 14:00:26,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:26,909 INFO L225 Difference]: With dead ends: 966 [2024-11-18 14:00:26,909 INFO L226 Difference]: Without dead ends: 524 [2024-11-18 14:00:26,912 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 [2024-11-18 14:00:26,913 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 91 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6645 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 [2024-11-18 14:00:26,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6645 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-18 14:00:26,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2024-11-18 14:00:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 413 states have (on average 1.6973365617433414) internal successors, (701), 434 states have internal predecessors, (701), 87 states have call successors, (87), 20 states have call predecessors, (87), 21 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2024-11-18 14:00:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 872 transitions. [2024-11-18 14:00:26,941 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 872 transitions. Word has length 81 [2024-11-18 14:00:26,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:26,942 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 872 transitions. [2024-11-18 14:00:26,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:26,942 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 872 transitions. [2024-11-18 14:00:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:00:26,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:26,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:26,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:00:26,947 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:26,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1544908031, now seen corresponding path program 1 times [2024-11-18 14:00:26,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:26,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101796254] [2024-11-18 14:00:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:27,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:27,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101796254] [2024-11-18 14:00:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101796254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:27,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:00:27,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919676923] [2024-11-18 14:00:27,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:27,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:00:27,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:27,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:00:27,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:27,044 INFO L87 Difference]: Start difference. First operand 522 states and 872 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:27,088 INFO L93 Difference]: Finished difference Result 1018 states and 1714 transitions. [2024-11-18 14:00:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:00:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-11-18 14:00:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:27,093 INFO L225 Difference]: With dead ends: 1018 [2024-11-18 14:00:27,093 INFO L226 Difference]: Without dead ends: 503 [2024-11-18 14:00:27,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:00:27,096 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 0 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:27,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2536 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-18 14:00:27,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-11-18 14:00:27,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 397 states have (on average 1.6926952141057934) internal successors, (672), 416 states have internal predecessors, (672), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 839 transitions. [2024-11-18 14:00:27,115 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 839 transitions. Word has length 81 [2024-11-18 14:00:27,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:27,117 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 839 transitions. [2024-11-18 14:00:27,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,118 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 839 transitions. [2024-11-18 14:00:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 14:00:27,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:27,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:27,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:00:27,120 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:27,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash -87552444, now seen corresponding path program 1 times [2024-11-18 14:00:27,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:27,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935666614] [2024-11-18 14:00:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:27,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:27,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:27,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935666614] [2024-11-18 14:00:27,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935666614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:27,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:27,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:27,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561883995] [2024-11-18 14:00:27,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:27,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:27,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:27,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:27,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:27,276 INFO L87 Difference]: Start difference. First operand 503 states and 839 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:27,523 INFO L93 Difference]: Finished difference Result 963 states and 1612 transitions. [2024-11-18 14:00:27,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:27,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-18 14:00:27,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:27,529 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:00:27,529 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:00:27,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:27,533 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 55 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:27,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3951 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:00:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:00:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:00:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 397 states have (on average 1.6826196473551638) internal successors, (668), 416 states have internal predecessors, (668), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 835 transitions. [2024-11-18 14:00:27,561 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 835 transitions. Word has length 82 [2024-11-18 14:00:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:27,561 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 835 transitions. [2024-11-18 14:00:27,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 835 transitions. [2024-11-18 14:00:27,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 14:00:27,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:27,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:27,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:00:27,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:27,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash 65538307, now seen corresponding path program 1 times [2024-11-18 14:00:27,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:27,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389074762] [2024-11-18 14:00:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:27,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:27,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:27,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389074762] [2024-11-18 14:00:27,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389074762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:27,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:27,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:27,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061639080] [2024-11-18 14:00:27,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:27,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:27,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:27,726 INFO L87 Difference]: Start difference. First operand 503 states and 835 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:27,918 INFO L93 Difference]: Finished difference Result 963 states and 1608 transitions. [2024-11-18 14:00:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:27,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-11-18 14:00:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:27,923 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:00:27,924 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:00:27,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:27,928 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 54 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:27,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3951 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:00:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:00:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:00:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 397 states have (on average 1.672544080604534) internal successors, (664), 416 states have internal predecessors, (664), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:27,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 831 transitions. [2024-11-18 14:00:27,948 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 831 transitions. Word has length 83 [2024-11-18 14:00:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:27,949 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 831 transitions. [2024-11-18 14:00:27,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 831 transitions. [2024-11-18 14:00:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 14:00:27,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:27,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:27,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:00:27,952 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:27,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash -626289879, now seen corresponding path program 1 times [2024-11-18 14:00:27,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:27,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813598614] [2024-11-18 14:00:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:27,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:28,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813598614] [2024-11-18 14:00:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813598614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066228831] [2024-11-18 14:00:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:28,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:28,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:28,110 INFO L87 Difference]: Start difference. First operand 503 states and 831 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:28,268 INFO L93 Difference]: Finished difference Result 963 states and 1604 transitions. [2024-11-18 14:00:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-18 14:00:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:28,273 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:00:28,273 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:00:28,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:28,276 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 53 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:28,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3933 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:00:28,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:00:28,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 397 states have (on average 1.6624685138539044) internal successors, (660), 416 states have internal predecessors, (660), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 827 transitions. [2024-11-18 14:00:28,297 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 827 transitions. Word has length 84 [2024-11-18 14:00:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:28,297 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 827 transitions. [2024-11-18 14:00:28,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 827 transitions. [2024-11-18 14:00:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 14:00:28,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:28,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:28,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:00:28,301 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:28,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash -459534423, now seen corresponding path program 1 times [2024-11-18 14:00:28,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:28,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671484568] [2024-11-18 14:00:28,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:28,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671484568] [2024-11-18 14:00:28,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671484568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:28,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:28,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724682564] [2024-11-18 14:00:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:28,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:28,485 INFO L87 Difference]: Start difference. First operand 503 states and 827 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:28,553 INFO L93 Difference]: Finished difference Result 954 states and 1586 transitions. [2024-11-18 14:00:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:00:28,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-18 14:00:28,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:28,559 INFO L225 Difference]: With dead ends: 954 [2024-11-18 14:00:28,559 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:00:28,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:28,562 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 84 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 4823 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:28,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 4823 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:00:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:00:28,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 376 states have (on average 1.6648936170212767) internal successors, (626), 395 states have internal predecessors, (626), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 793 transitions. [2024-11-18 14:00:28,580 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 793 transitions. Word has length 84 [2024-11-18 14:00:28,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:28,581 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 793 transitions. [2024-11-18 14:00:28,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:28,581 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 793 transitions. [2024-11-18 14:00:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 14:00:28,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:28,584 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:28,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:00:28,584 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:28,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:28,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1740801336, now seen corresponding path program 1 times [2024-11-18 14:00:28,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:28,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567056727] [2024-11-18 14:00:28,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:28,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:28,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567056727] [2024-11-18 14:00:28,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567056727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:28,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:28,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:28,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766417198] [2024-11-18 14:00:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:28,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:28,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:28,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:28,721 INFO L87 Difference]: Start difference. First operand 482 states and 793 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:28,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:28,804 INFO L93 Difference]: Finished difference Result 933 states and 1552 transitions. [2024-11-18 14:00:28,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:28,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-18 14:00:28,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:28,809 INFO L225 Difference]: With dead ends: 933 [2024-11-18 14:00:28,809 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:00:28,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:28,812 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 17 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:28,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3871 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:00:28,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:00:28,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 376 states have (on average 1.6622340425531914) internal successors, (625), 395 states have internal predecessors, (625), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 792 transitions. [2024-11-18 14:00:28,828 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 792 transitions. Word has length 85 [2024-11-18 14:00:28,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:28,828 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 792 transitions. [2024-11-18 14:00:28,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 792 transitions. [2024-11-18 14:00:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 14:00:28,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:28,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:28,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:00:28,831 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:28,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:28,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1221374990, now seen corresponding path program 1 times [2024-11-18 14:00:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:28,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138356618] [2024-11-18 14:00:28,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:28,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:28,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138356618] [2024-11-18 14:00:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138356618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:28,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:28,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505023411] [2024-11-18 14:00:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:28,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:28,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:28,954 INFO L87 Difference]: Start difference. First operand 482 states and 792 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:29,023 INFO L93 Difference]: Finished difference Result 933 states and 1551 transitions. [2024-11-18 14:00:29,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:00:29,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-11-18 14:00:29,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:29,061 INFO L225 Difference]: With dead ends: 933 [2024-11-18 14:00:29,062 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:00:29,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:29,064 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 16 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:29,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3871 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:29,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:00:29,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:00:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 376 states have (on average 1.6595744680851063) internal successors, (624), 395 states have internal predecessors, (624), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:29,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 791 transitions. [2024-11-18 14:00:29,080 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 791 transitions. Word has length 86 [2024-11-18 14:00:29,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:29,081 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 791 transitions. [2024-11-18 14:00:29,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:00:29,081 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 791 transitions. [2024-11-18 14:00:29,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 14:00:29,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:29,083 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:29,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:00:29,084 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:29,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:29,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1711853709, now seen corresponding path program 1 times [2024-11-18 14:00:29,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:29,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606781077] [2024-11-18 14:00:29,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:29,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606781077] [2024-11-18 14:00:29,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606781077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:00:29,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034622699] [2024-11-18 14:00:29,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:00:29,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:00:29,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:29,302 INFO L87 Difference]: Start difference. First operand 482 states and 791 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:29,403 INFO L93 Difference]: Finished difference Result 927 states and 1539 transitions. [2024-11-18 14:00:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:00:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-18 14:00:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:29,408 INFO L225 Difference]: With dead ends: 927 [2024-11-18 14:00:29,409 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:00:29,411 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 [2024-11-18 14:00:29,412 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 6 mSDsluCounter, 6178 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6953 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 [2024-11-18 14:00:29,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6953 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:29,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:00:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:00:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 376 states have (on average 1.6569148936170213) internal successors, (623), 395 states have internal predecessors, (623), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-18 14:00:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 790 transitions. [2024-11-18 14:00:29,428 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 790 transitions. Word has length 87 [2024-11-18 14:00:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:29,428 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 790 transitions. [2024-11-18 14:00:29,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 790 transitions. [2024-11-18 14:00:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 14:00:29,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:29,431 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:29,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:00:29,431 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:29,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1934923325, now seen corresponding path program 1 times [2024-11-18 14:00:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:29,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260813685] [2024-11-18 14:00:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:29,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:29,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260813685] [2024-11-18 14:00:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260813685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:00:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468889783] [2024-11-18 14:00:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:29,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:00:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:00:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:29,728 INFO L87 Difference]: Start difference. First operand 482 states and 790 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:31,345 INFO L93 Difference]: Finished difference Result 923 states and 1551 transitions. [2024-11-18 14:00:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:00:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2024-11-18 14:00:31,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:31,351 INFO L225 Difference]: With dead ends: 923 [2024-11-18 14:00:31,351 INFO L226 Difference]: Without dead ends: 486 [2024-11-18 14:00:31,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:00:31,355 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1212 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 2728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:31,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 1594 Invalid, 2728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 14:00:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-18 14:00:31,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-18 14:00:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 379 states have (on average 1.6517150395778364) internal successors, (626), 398 states have internal predecessors, (626), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (97), 80 states have call predecessors, (97), 81 states have call successors, (97) [2024-11-18 14:00:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 809 transitions. [2024-11-18 14:00:31,381 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 809 transitions. Word has length 88 [2024-11-18 14:00:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:31,381 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 809 transitions. [2024-11-18 14:00:31,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:00:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 809 transitions. [2024-11-18 14:00:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:00:31,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:31,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:31,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:00:31,384 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:31,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:31,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1400906818, now seen corresponding path program 1 times [2024-11-18 14:00:31,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:31,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160079163] [2024-11-18 14:00:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:31,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:31,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:31,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160079163] [2024-11-18 14:00:31,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160079163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:31,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:31,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:31,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065205710] [2024-11-18 14:00:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:31,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:31,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:31,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:31,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:31,570 INFO L87 Difference]: Start difference. First operand 486 states and 809 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:34,908 INFO L93 Difference]: Finished difference Result 1730 states and 2977 transitions. [2024-11-18 14:00:34,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:00:34,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 89 [2024-11-18 14:00:34,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:34,920 INFO L225 Difference]: With dead ends: 1730 [2024-11-18 14:00:34,920 INFO L226 Difference]: Without dead ends: 1289 [2024-11-18 14:00:34,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-18 14:00:34,924 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 2173 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 4314 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 4878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 4314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:34,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 2590 Invalid, 4878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 4314 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 14:00:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-18 14:00:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1232. [2024-11-18 14:00:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 957 states have (on average 1.6666666666666667) internal successors, (1595), 1005 states have internal predecessors, (1595), 223 states have call successors, (223), 51 states have call predecessors, (223), 51 states have return successors, (238), 212 states have call predecessors, (238), 218 states have call successors, (238) [2024-11-18 14:00:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 2056 transitions. [2024-11-18 14:00:35,037 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 2056 transitions. Word has length 89 [2024-11-18 14:00:35,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:35,038 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 2056 transitions. [2024-11-18 14:00:35,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 2056 transitions. [2024-11-18 14:00:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:00:35,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:35,040 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:35,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:00:35,040 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:35,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash 670706200, now seen corresponding path program 1 times [2024-11-18 14:00:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:35,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849600018] [2024-11-18 14:00:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:35,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849600018] [2024-11-18 14:00:35,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849600018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:35,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:35,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349831376] [2024-11-18 14:00:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:35,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:35,215 INFO L87 Difference]: Start difference. First operand 1232 states and 2056 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:38,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:38,690 INFO L93 Difference]: Finished difference Result 5362 states and 9172 transitions. [2024-11-18 14:00:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:00:38,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2024-11-18 14:00:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:38,729 INFO L225 Difference]: With dead ends: 5362 [2024-11-18 14:00:38,729 INFO L226 Difference]: Without dead ends: 4175 [2024-11-18 14:00:38,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:00:38,741 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 2711 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 4876 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 5506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 4876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:38,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 2315 Invalid, 5506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 4876 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-18 14:00:38,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2024-11-18 14:00:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 3889. [2024-11-18 14:00:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3889 states, 2924 states have (on average 1.6713406292749657) internal successors, (4887), 3100 states have internal predecessors, (4887), 817 states have call successors, (817), 137 states have call predecessors, (817), 147 states have return successors, (957), 792 states have call predecessors, (957), 812 states have call successors, (957) [2024-11-18 14:00:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3889 states to 3889 states and 6661 transitions. [2024-11-18 14:00:39,017 INFO L78 Accepts]: Start accepts. Automaton has 3889 states and 6661 transitions. Word has length 91 [2024-11-18 14:00:39,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:39,018 INFO L471 AbstractCegarLoop]: Abstraction has 3889 states and 6661 transitions. [2024-11-18 14:00:39,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3889 states and 6661 transitions. [2024-11-18 14:00:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:00:39,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:39,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:39,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:00:39,022 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:39,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1174660966, now seen corresponding path program 1 times [2024-11-18 14:00:39,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:39,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258882289] [2024-11-18 14:00:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:39,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:39,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:39,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:39,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258882289] [2024-11-18 14:00:39,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258882289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:39,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:39,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:39,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233485144] [2024-11-18 14:00:39,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:39,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:39,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:39,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:39,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:39,193 INFO L87 Difference]: Start difference. First operand 3889 states and 6661 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:41,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:41,738 INFO L93 Difference]: Finished difference Result 10686 states and 18455 transitions. [2024-11-18 14:00:41,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 14:00:41,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2024-11-18 14:00:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:41,825 INFO L225 Difference]: With dead ends: 10686 [2024-11-18 14:00:41,825 INFO L226 Difference]: Without dead ends: 7838 [2024-11-18 14:00:41,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:00:41,843 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 2242 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:41,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 1707 Invalid, 3828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [475 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 14:00:41,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7838 states. [2024-11-18 14:00:42,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7838 to 7327. [2024-11-18 14:00:42,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 5539 states have (on average 1.6688933020400794) internal successors, (9244), 5869 states have internal predecessors, (9244), 1485 states have call successors, (1485), 254 states have call predecessors, (1485), 302 states have return successors, (1868), 1439 states have call predecessors, (1868), 1480 states have call successors, (1868) [2024-11-18 14:00:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 12597 transitions. [2024-11-18 14:00:42,352 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 12597 transitions. Word has length 91 [2024-11-18 14:00:42,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:42,352 INFO L471 AbstractCegarLoop]: Abstraction has 7327 states and 12597 transitions. [2024-11-18 14:00:42,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:00:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 12597 transitions. [2024-11-18 14:00:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 14:00:42,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:42,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:42,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:00:42,359 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:42,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash -805004863, now seen corresponding path program 1 times [2024-11-18 14:00:42,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:42,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514430700] [2024-11-18 14:00:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:42,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514430700] [2024-11-18 14:00:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514430700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:42,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:42,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:00:42,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638043245] [2024-11-18 14:00:42,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:42,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:42,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:00:42,499 INFO L87 Difference]: Start difference. First operand 7327 states and 12597 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:00:42,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:42,939 INFO L93 Difference]: Finished difference Result 13535 states and 23341 transitions. [2024-11-18 14:00:42,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:42,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-18 14:00:42,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:43,014 INFO L225 Difference]: With dead ends: 13535 [2024-11-18 14:00:43,014 INFO L226 Difference]: Without dead ends: 7414 [2024-11-18 14:00:43,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:00:43,046 INFO L432 NwaCegarLoop]: 788 mSDtfsCounter, 0 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:43,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3122 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7414 states. [2024-11-18 14:00:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7414 to 7400. [2024-11-18 14:00:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7400 states, 5595 states have (on average 1.6616621983914208) internal successors, (9297), 5924 states have internal predecessors, (9297), 1482 states have call successors, (1482), 254 states have call predecessors, (1482), 322 states have return successors, (1931), 1457 states have call predecessors, (1931), 1477 states have call successors, (1931) [2024-11-18 14:00:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7400 states to 7400 states and 12710 transitions. [2024-11-18 14:00:43,618 INFO L78 Accepts]: Start accepts. Automaton has 7400 states and 12710 transitions. Word has length 96 [2024-11-18 14:00:43,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:43,620 INFO L471 AbstractCegarLoop]: Abstraction has 7400 states and 12710 transitions. [2024-11-18 14:00:43,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:00:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 7400 states and 12710 transitions. [2024-11-18 14:00:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:00:43,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:43,625 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:43,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:00:43,625 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:43,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:43,626 INFO L85 PathProgramCache]: Analyzing trace with hash -468379554, now seen corresponding path program 1 times [2024-11-18 14:00:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071009858] [2024-11-18 14:00:43,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:43,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:00:43,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071009858] [2024-11-18 14:00:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071009858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:43,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646025363] [2024-11-18 14:00:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:43,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:43,800 INFO L87 Difference]: Start difference. First operand 7400 states and 12710 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:00:44,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:44,399 INFO L93 Difference]: Finished difference Result 14761 states and 25814 transitions. [2024-11-18 14:00:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:00:44,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-18 14:00:44,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:44,448 INFO L225 Difference]: With dead ends: 14761 [2024-11-18 14:00:44,449 INFO L226 Difference]: Without dead ends: 7548 [2024-11-18 14:00:44,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:44,474 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 224 mSDsluCounter, 3069 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:44,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 3900 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:00:44,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2024-11-18 14:00:44,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 7424. [2024-11-18 14:00:44,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7424 states, 5616 states have (on average 1.6378205128205128) internal successors, (9198), 5948 states have internal predecessors, (9198), 1482 states have call successors, (1482), 254 states have call predecessors, (1482), 325 states have return successors, (1943), 1457 states have call predecessors, (1943), 1477 states have call successors, (1943) [2024-11-18 14:00:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7424 states to 7424 states and 12623 transitions. [2024-11-18 14:00:44,882 INFO L78 Accepts]: Start accepts. Automaton has 7424 states and 12623 transitions. Word has length 103 [2024-11-18 14:00:44,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:44,882 INFO L471 AbstractCegarLoop]: Abstraction has 7424 states and 12623 transitions. [2024-11-18 14:00:44,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:00:44,883 INFO L276 IsEmpty]: Start isEmpty. Operand 7424 states and 12623 transitions. [2024-11-18 14:00:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:00:44,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:44,886 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:44,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:00:44,887 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:44,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1056047228, now seen corresponding path program 1 times [2024-11-18 14:00:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086276828] [2024-11-18 14:00:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:00:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086276828] [2024-11-18 14:00:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086276828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:45,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:45,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149562137] [2024-11-18 14:00:45,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:45,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:45,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:45,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:45,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:45,119 INFO L87 Difference]: Start difference. First operand 7424 states and 12623 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-18 14:00:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:47,572 INFO L93 Difference]: Finished difference Result 14368 states and 24483 transitions. [2024-11-18 14:00:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:00:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-18 14:00:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:47,622 INFO L225 Difference]: With dead ends: 14368 [2024-11-18 14:00:47,623 INFO L226 Difference]: Without dead ends: 8166 [2024-11-18 14:00:47,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:00:47,647 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 1964 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:47,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 1645 Invalid, 3304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 14:00:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8166 states. [2024-11-18 14:00:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8166 to 7659. [2024-11-18 14:00:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7659 states, 5791 states have (on average 1.6261440165774477) internal successors, (9417), 6141 states have internal predecessors, (9417), 1502 states have call successors, (1502), 279 states have call predecessors, (1502), 365 states have return successors, (2035), 1475 states have call predecessors, (2035), 1497 states have call successors, (2035) [2024-11-18 14:00:48,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7659 states to 7659 states and 12954 transitions. [2024-11-18 14:00:48,160 INFO L78 Accepts]: Start accepts. Automaton has 7659 states and 12954 transitions. Word has length 108 [2024-11-18 14:00:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:48,161 INFO L471 AbstractCegarLoop]: Abstraction has 7659 states and 12954 transitions. [2024-11-18 14:00:48,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-18 14:00:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 7659 states and 12954 transitions. [2024-11-18 14:00:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 14:00:48,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:48,166 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:48,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:00:48,166 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:48,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1752008711, now seen corresponding path program 1 times [2024-11-18 14:00:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:48,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527042450] [2024-11-18 14:00:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:00:48,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:48,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527042450] [2024-11-18 14:00:48,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527042450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:48,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:48,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:00:48,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426095893] [2024-11-18 14:00:48,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:48,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:00:48,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:00:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:00:48,356 INFO L87 Difference]: Start difference. First operand 7659 states and 12954 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-18 14:00:49,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:49,012 INFO L93 Difference]: Finished difference Result 17333 states and 29476 transitions. [2024-11-18 14:00:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2024-11-18 14:00:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:49,097 INFO L225 Difference]: With dead ends: 17333 [2024-11-18 14:00:49,097 INFO L226 Difference]: Without dead ends: 10896 [2024-11-18 14:00:49,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:00:49,132 INFO L432 NwaCegarLoop]: 1261 mSDtfsCounter, 721 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:49,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 4538 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10896 states. [2024-11-18 14:00:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10896 to 10222. [2024-11-18 14:00:49,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10222 states, 7737 states have (on average 1.6368101331265348) internal successors, (12664), 8190 states have internal predecessors, (12664), 2023 states have call successors, (2023), 360 states have call predecessors, (2023), 461 states have return successors, (2676), 2003 states have call predecessors, (2676), 2018 states have call successors, (2676) [2024-11-18 14:00:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10222 states to 10222 states and 17363 transitions. [2024-11-18 14:00:49,781 INFO L78 Accepts]: Start accepts. Automaton has 10222 states and 17363 transitions. Word has length 113 [2024-11-18 14:00:49,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:49,782 INFO L471 AbstractCegarLoop]: Abstraction has 10222 states and 17363 transitions. [2024-11-18 14:00:49,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-18 14:00:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 10222 states and 17363 transitions. [2024-11-18 14:00:49,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:00:49,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:49,785 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 14:00:49,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:00:49,786 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:49,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:49,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1815209549, now seen corresponding path program 1 times [2024-11-18 14:00:49,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:49,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606996720] [2024-11-18 14:00:49,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:49,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:00:50,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:50,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606996720] [2024-11-18 14:00:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606996720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:00:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832656471] [2024-11-18 14:00:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:50,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:00:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:00:50,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:00:50,009 INFO L87 Difference]: Start difference. First operand 10222 states and 17363 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-18 14:00:53,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:53,337 INFO L93 Difference]: Finished difference Result 22332 states and 37655 transitions. [2024-11-18 14:00:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:00:53,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 115 [2024-11-18 14:00:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:53,438 INFO L225 Difference]: With dead ends: 22332 [2024-11-18 14:00:53,438 INFO L226 Difference]: Without dead ends: 13151 [2024-11-18 14:00:53,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-18 14:00:53,485 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 1959 mSDsluCounter, 2906 mSDsCounter, 0 mSdLazyCounter, 6497 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 6910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 6497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:53,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 3417 Invalid, 6910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 6497 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-18 14:00:53,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2024-11-18 14:00:54,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 11959. [2024-11-18 14:00:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11959 states, 9109 states have (on average 1.6158744099242508) internal successors, (14719), 9627 states have internal predecessors, (14719), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-11-18 14:00:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11959 states to 11959 states and 19982 transitions. [2024-11-18 14:00:54,187 INFO L78 Accepts]: Start accepts. Automaton has 11959 states and 19982 transitions. Word has length 115 [2024-11-18 14:00:54,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:54,188 INFO L471 AbstractCegarLoop]: Abstraction has 11959 states and 19982 transitions. [2024-11-18 14:00:54,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-18 14:00:54,188 INFO L276 IsEmpty]: Start isEmpty. Operand 11959 states and 19982 transitions. [2024-11-18 14:00:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 14:00:54,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:54,192 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:54,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:00:54,192 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:54,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash 737520251, now seen corresponding path program 1 times [2024-11-18 14:00:54,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:54,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743544515] [2024-11-18 14:00:54,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:00:54,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743544515] [2024-11-18 14:00:54,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743544515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:54,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:54,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:00:54,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991173768] [2024-11-18 14:00:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:54,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:00:54,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:54,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:00:54,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:00:54,351 INFO L87 Difference]: Start difference. First operand 11959 states and 19982 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:00:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:55,334 INFO L93 Difference]: Finished difference Result 12091 states and 20212 transitions. [2024-11-18 14:00:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:00:55,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2024-11-18 14:00:55,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:55,442 INFO L225 Difference]: With dead ends: 12091 [2024-11-18 14:00:55,442 INFO L226 Difference]: Without dead ends: 12076 [2024-11-18 14:00:55,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:55,455 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 851 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:55,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2188 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:00:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12076 states. [2024-11-18 14:00:56,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12076 to 11971. [2024-11-18 14:00:56,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11971 states, 9121 states have (on average 1.6150641377041992) internal successors, (14731), 9639 states have internal predecessors, (14731), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-11-18 14:00:56,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11971 states to 11971 states and 19994 transitions. [2024-11-18 14:00:56,395 INFO L78 Accepts]: Start accepts. Automaton has 11971 states and 19994 transitions. Word has length 113 [2024-11-18 14:00:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:56,395 INFO L471 AbstractCegarLoop]: Abstraction has 11971 states and 19994 transitions. [2024-11-18 14:00:56,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 14:00:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 11971 states and 19994 transitions. [2024-11-18 14:00:56,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:00:56,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:56,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:56,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:00:56,401 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:56,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash -945945546, now seen corresponding path program 1 times [2024-11-18 14:00:56,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:56,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284301092] [2024-11-18 14:00:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:56,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:00:56,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:56,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284301092] [2024-11-18 14:00:56,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284301092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:56,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:56,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:00:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35785432] [2024-11-18 14:00:56,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:56,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:00:56,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:56,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:00:56,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:56,607 INFO L87 Difference]: Start difference. First operand 11971 states and 19994 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:00:57,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:57,333 INFO L93 Difference]: Finished difference Result 11986 states and 20012 transitions. [2024-11-18 14:00:57,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:00:57,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2024-11-18 14:00:57,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:00:57,413 INFO L225 Difference]: With dead ends: 11986 [2024-11-18 14:00:57,413 INFO L226 Difference]: Without dead ends: 11971 [2024-11-18 14:00:57,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:00:57,427 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 0 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:00:57,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4644 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:00:57,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11971 states. [2024-11-18 14:00:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11971 to 11971. [2024-11-18 14:00:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11971 states, 9121 states have (on average 1.6141870408946388) internal successors, (14723), 9639 states have internal predecessors, (14723), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-11-18 14:00:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11971 states to 11971 states and 19986 transitions. [2024-11-18 14:00:57,981 INFO L78 Accepts]: Start accepts. Automaton has 11971 states and 19986 transitions. Word has length 119 [2024-11-18 14:00:57,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:00:57,981 INFO L471 AbstractCegarLoop]: Abstraction has 11971 states and 19986 transitions. [2024-11-18 14:00:57,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:00:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 11971 states and 19986 transitions. [2024-11-18 14:00:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 14:00:57,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:00:57,987 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:00:57,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:00:57,987 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:00:57,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:00:57,987 INFO L85 PathProgramCache]: Analyzing trace with hash -474847972, now seen corresponding path program 1 times [2024-11-18 14:00:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:00:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203993506] [2024-11-18 14:00:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:00:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:00:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:00:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:00:58,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:00:58,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203993506] [2024-11-18 14:00:58,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203993506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:00:58,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:00:58,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:00:58,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941694951] [2024-11-18 14:00:58,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:00:58,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:00:58,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:00:58,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:00:58,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:00:58,277 INFO L87 Difference]: Start difference. First operand 11971 states and 19986 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:00:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:00:59,984 INFO L93 Difference]: Finished difference Result 23947 states and 40143 transitions. [2024-11-18 14:00:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:00:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2024-11-18 14:00:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:00,075 INFO L225 Difference]: With dead ends: 23947 [2024-11-18 14:01:00,076 INFO L226 Difference]: Without dead ends: 12037 [2024-11-18 14:01:00,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:01:00,121 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1158 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:00,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1585 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 14:01:00,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12037 states. [2024-11-18 14:01:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12037 to 11971. [2024-11-18 14:01:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11971 states, 9121 states have (on average 1.6133099440850784) internal successors, (14715), 9639 states have internal predecessors, (14715), 2251 states have call successors, (2251), 449 states have call predecessors, (2251), 598 states have return successors, (3012), 2207 states have call predecessors, (3012), 2246 states have call successors, (3012) [2024-11-18 14:01:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11971 states to 11971 states and 19978 transitions. [2024-11-18 14:01:00,760 INFO L78 Accepts]: Start accepts. Automaton has 11971 states and 19978 transitions. Word has length 130 [2024-11-18 14:01:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:00,761 INFO L471 AbstractCegarLoop]: Abstraction has 11971 states and 19978 transitions. [2024-11-18 14:01:00,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:01:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 11971 states and 19978 transitions. [2024-11-18 14:01:00,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 14:01:00,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:00,766 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-18 14:01:00,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 14:01:00,767 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:00,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 73009735, now seen corresponding path program 1 times [2024-11-18 14:01:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:00,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923036627] [2024-11-18 14:01:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:00,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:01:00,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:00,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923036627] [2024-11-18 14:01:00,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923036627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:00,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:00,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:00,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047126098] [2024-11-18 14:01:00,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:00,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:00,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:00,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:00,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:00,906 INFO L87 Difference]: Start difference. First operand 11971 states and 19978 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:01:03,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:03,423 INFO L93 Difference]: Finished difference Result 39410 states and 67726 transitions. [2024-11-18 14:01:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:03,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 139 [2024-11-18 14:01:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:03,667 INFO L225 Difference]: With dead ends: 39410 [2024-11-18 14:01:03,667 INFO L226 Difference]: Without dead ends: 27484 [2024-11-18 14:01:03,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:01:03,750 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1735 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:03,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 915 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:01:03,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27484 states. [2024-11-18 14:01:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27484 to 26578. [2024-11-18 14:01:05,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26578 states, 19767 states have (on average 1.606667678453989) internal successors, (31759), 21024 states have internal predecessors, (31759), 5552 states have call successors, (5552), 893 states have call predecessors, (5552), 1258 states have return successors, (8568), 5485 states have call predecessors, (8568), 5547 states have call successors, (8568) [2024-11-18 14:01:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26578 states to 26578 states and 45879 transitions. [2024-11-18 14:01:05,892 INFO L78 Accepts]: Start accepts. Automaton has 26578 states and 45879 transitions. Word has length 139 [2024-11-18 14:01:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:05,893 INFO L471 AbstractCegarLoop]: Abstraction has 26578 states and 45879 transitions. [2024-11-18 14:01:05,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:01:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 26578 states and 45879 transitions. [2024-11-18 14:01:05,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:01:05,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:05,902 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-18 14:01:05,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 14:01:05,902 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:05,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2031785437, now seen corresponding path program 1 times [2024-11-18 14:01:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:05,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622507914] [2024-11-18 14:01:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:01:06,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622507914] [2024-11-18 14:01:06,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622507914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:06,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:06,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:06,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385513346] [2024-11-18 14:01:06,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:06,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:06,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:06,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:06,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:06,247 INFO L87 Difference]: Start difference. First operand 26578 states and 45879 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:01:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:10,775 INFO L93 Difference]: Finished difference Result 89174 states and 160479 transitions. [2024-11-18 14:01:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:10,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 140 [2024-11-18 14:01:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:11,465 INFO L225 Difference]: With dead ends: 89174 [2024-11-18 14:01:11,465 INFO L226 Difference]: Without dead ends: 62641 [2024-11-18 14:01:11,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:01:11,555 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1737 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1806 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:11,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1806 Valid, 888 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 14:01:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62641 states. [2024-11-18 14:01:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62641 to 60645. [2024-11-18 14:01:15,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60645 states, 43896 states have (on average 1.5981182795698925) internal successors, (70151), 46995 states have internal predecessors, (70151), 14089 states have call successors, (14089), 1781 states have call predecessors, (14089), 2659 states have return successors, (25528), 14008 states have call predecessors, (25528), 14084 states have call successors, (25528) [2024-11-18 14:01:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60645 states to 60645 states and 109768 transitions. [2024-11-18 14:01:16,032 INFO L78 Accepts]: Start accepts. Automaton has 60645 states and 109768 transitions. Word has length 140 [2024-11-18 14:01:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:16,033 INFO L471 AbstractCegarLoop]: Abstraction has 60645 states and 109768 transitions. [2024-11-18 14:01:16,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:01:16,033 INFO L276 IsEmpty]: Start isEmpty. Operand 60645 states and 109768 transitions. [2024-11-18 14:01:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:01:16,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:16,041 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-11-18 14:01:16,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 14:01:16,041 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:16,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1439044873, now seen corresponding path program 1 times [2024-11-18 14:01:16,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:16,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797510165] [2024-11-18 14:01:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:01:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797510165] [2024-11-18 14:01:16,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797510165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:16,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:16,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:16,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693322660] [2024-11-18 14:01:16,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:16,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:16,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:16,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:16,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:16,545 INFO L87 Difference]: Start difference. First operand 60645 states and 109768 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)