./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product09.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_spec9_product09.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 cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:03:58,956 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:03:59,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:03:59,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:03:59,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:03:59,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:03:59,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:03:59,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:03:59,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:03:59,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:03:59,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:03:59,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:03:59,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:03:59,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:03:59,054 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:03:59,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:03:59,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:03:59,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:03:59,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:03:59,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:03:59,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:03:59,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:03:59,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:03:59,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:03:59,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:03:59,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:03:59,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:03:59,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:03:59,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:03:59,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:03:59,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:03:59,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:03:59,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:03:59,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:03:59,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:03:59,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:03:59,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:03:59,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:03:59,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:03:59,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:03:59,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:03:59,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:03:59,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc5b9f71a5434758faa1f6f3febe6f12c158e9feff610b938ef9d4658acd21ff [2024-11-18 14:03:59,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:03:59,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:03:59,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:03:59,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:03:59,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:03:59,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2024-11-18 14:04:00,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:04:00,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:04:00,694 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c [2024-11-18 14:04:00,720 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6479c5571/20bfd843d280424098fae4e93ee01e84/FLAGa06cc8a2b [2024-11-18 14:04:00,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6479c5571/20bfd843d280424098fae4e93ee01e84 [2024-11-18 14:04:00,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:04:00,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:04:00,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:04:00,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:04:00,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:04:00,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:00" (1/1) ... [2024-11-18 14:04:00,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c0d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:00, skipping insertion in model container [2024-11-18 14:04:00,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:00" (1/1) ... [2024-11-18 14:04:00,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:04:01,192 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2024-11-18 14:04:01,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:04:01,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:04:01,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-18 14:04:01,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [62] [2024-11-18 14:04:01,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [730] [2024-11-18 14:04:01,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1092] [2024-11-18 14:04:01,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2539] [2024-11-18 14:04:01,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [2905] [2024-11-18 14:04:01,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3065] [2024-11-18 14:04:01,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3184] [2024-11-18 14:04:01,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3275] [2024-11-18 14:04:01,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3310] [2024-11-18 14:04:01,298 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product09.cil.c[70349,70362] [2024-11-18 14:04:01,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:04:01,324 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:04:01,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01 WrapperNode [2024-11-18 14:04:01,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:04:01,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:04:01,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:04:01,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:04:01,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,389 INFO L138 Inliner]: procedures = 89, calls = 327, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 770 [2024-11-18 14:04:01,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:04:01,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:04:01,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:04:01,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:04:01,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,404 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,423 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-18 14:04:01,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:04:01,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:04:01,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:04:01,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:04:01,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (1/1) ... [2024-11-18 14:04:01,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:04:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:04:01,509 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 14:04:01,512 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 14:04:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:04:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 14:04:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 14:04:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 14:04:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 14:04:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 14:04:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 14:04:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 14:04:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 14:04:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:04:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:04:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:04:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:04:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:04:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:04:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 14:04:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 14:04:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 14:04:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 14:04:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 14:04:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 14:04:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 14:04:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 14:04:01,555 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 14:04:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 14:04:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 14:04:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 14:04:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-18 14:04:01,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:04:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:04:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:04:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:04:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 14:04:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 14:04:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 14:04:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 14:04:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 14:04:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 14:04:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:04:01,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:04:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 14:04:01,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 14:04:01,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:04:01,730 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:04:02,630 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-18 14:04:02,630 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:04:02,652 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:04:02,652 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:04:02,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:02 BoogieIcfgContainer [2024-11-18 14:04:02,653 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:04:02,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:04:02,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:04:02,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:04:02,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:00" (1/3) ... [2024-11-18 14:04:02,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471cb40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:02, skipping insertion in model container [2024-11-18 14:04:02,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:01" (2/3) ... [2024-11-18 14:04:02,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471cb40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:02, skipping insertion in model container [2024-11-18 14:04:02,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:02" (3/3) ... [2024-11-18 14:04:02,659 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2024-11-18 14:04:02,673 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:04:02,673 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:04:02,733 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:04:02,738 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;@4441494e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:04:02,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:04:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:04:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-18 14:04:02,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:02,774 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] [2024-11-18 14:04:02,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:02,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash 410712124, now seen corresponding path program 1 times [2024-11-18 14:04:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:02,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438056905] [2024-11-18 14:04:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:03,255 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 14:04:03,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:03,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438056905] [2024-11-18 14:04:03,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438056905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:03,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:03,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233194577] [2024-11-18 14:04:03,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:03,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:03,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:03,288 INFO L87 Difference]: Start difference. First operand has 517 states, 412 states have (on average 1.720873786407767) internal successors, (709), 433 states have internal predecessors, (709), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (83), 77 states have call predecessors, (83), 83 states have call successors, (83) 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:03,417 INFO L93 Difference]: Finished difference Result 1014 states and 1725 transitions. [2024-11-18 14:04:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:03,419 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-18 14:04:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:03,433 INFO L225 Difference]: With dead ends: 1014 [2024-11-18 14:04:03,433 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:04:03,440 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 14:04:03,443 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 5 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2558 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 14:04:03,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2558 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:04:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:04:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 406 states have (on average 1.7167487684729064) internal successors, (697), 425 states have internal predecessors, (697), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:03,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 858 transitions. [2024-11-18 14:04:03,506 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 858 transitions. Word has length 76 [2024-11-18 14:04:03,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:03,507 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 858 transitions. [2024-11-18 14:04:03,507 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 858 transitions. [2024-11-18 14:04:03,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:04:03,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:03,512 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 14:04:03,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:04:03,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:03,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2054494706, now seen corresponding path program 1 times [2024-11-18 14:04:03,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:03,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847077323] [2024-11-18 14:04:03,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:03,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:03,661 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 14:04:03,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847077323] [2024-11-18 14:04:03,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847077323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:03,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:03,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898685752] [2024-11-18 14:04:03,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:03,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:03,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:03,664 INFO L87 Difference]: Start difference. First operand 509 states and 858 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:03,739 INFO L93 Difference]: Finished difference Result 1000 states and 1693 transitions. [2024-11-18 14:04:03,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:03,740 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2024-11-18 14:04:03,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:03,745 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:04:03,745 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:04:03,748 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 14:04:03,749 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 4 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2537 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 14:04:03,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2537 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:03,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:04:03,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:04:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 406 states have (on average 1.7142857142857142) internal successors, (696), 425 states have internal predecessors, (696), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 857 transitions. [2024-11-18 14:04:03,786 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 857 transitions. Word has length 79 [2024-11-18 14:04:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:03,787 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 857 transitions. [2024-11-18 14:04:03,787 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 857 transitions. [2024-11-18 14:04:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:04:03,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:03,789 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 14:04:03,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:04:03,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:03,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:03,791 INFO L85 PathProgramCache]: Analyzing trace with hash 978520844, now seen corresponding path program 1 times [2024-11-18 14:04:03,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873363569] [2024-11-18 14:04:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:03,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:03,909 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 14:04:03,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:03,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873363569] [2024-11-18 14:04:03,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873363569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:03,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:03,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37158326] [2024-11-18 14:04:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:03,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:03,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:03,912 INFO L87 Difference]: Start difference. First operand 509 states and 857 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:03,957 INFO L93 Difference]: Finished difference Result 1000 states and 1692 transitions. [2024-11-18 14:04:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:03,957 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2024-11-18 14:04:03,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:03,961 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:04:03,961 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:04:03,963 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 14:04:03,965 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 3 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2537 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 14:04:03,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2537 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:04:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:04:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 406 states have (on average 1.7118226600985222) internal successors, (695), 425 states have internal predecessors, (695), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:03,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 856 transitions. [2024-11-18 14:04:03,984 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 856 transitions. Word has length 80 [2024-11-18 14:04:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:03,986 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 856 transitions. [2024-11-18 14:04:03,986 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 856 transitions. [2024-11-18 14:04:03,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:04:03,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:03,988 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 14:04:03,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:04:03,989 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:03,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -951212470, now seen corresponding path program 1 times [2024-11-18 14:04:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042202563] [2024-11-18 14:04:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:04,122 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 14:04:04,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:04,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042202563] [2024-11-18 14:04:04,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042202563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:04,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:04,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:04,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514769998] [2024-11-18 14:04:04,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:04,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:04,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:04,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:04,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:04,125 INFO L87 Difference]: Start difference. First operand 509 states and 856 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:04,164 INFO L93 Difference]: Finished difference Result 1000 states and 1691 transitions. [2024-11-18 14:04:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:04,164 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2024-11-18 14:04:04,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:04,168 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:04:04,168 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:04:04,172 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 14:04:04,173 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 2 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2537 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 14:04:04,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2537 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:04:04,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:04:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 406 states have (on average 1.70935960591133) internal successors, (694), 425 states have internal predecessors, (694), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 855 transitions. [2024-11-18 14:04:04,195 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 855 transitions. Word has length 81 [2024-11-18 14:04:04,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:04,195 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 855 transitions. [2024-11-18 14:04:04,195 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 855 transitions. [2024-11-18 14:04:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 14:04:04,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:04,198 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 14:04:04,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:04:04,198 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:04,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2107337912, now seen corresponding path program 1 times [2024-11-18 14:04:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:04,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673702321] [2024-11-18 14:04:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:04,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:04,302 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 14:04:04,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:04,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673702321] [2024-11-18 14:04:04,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673702321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:04,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:04,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:04,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608490325] [2024-11-18 14:04:04,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:04,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:04,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:04,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:04,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:04,306 INFO L87 Difference]: Start difference. First operand 509 states and 855 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:04,338 INFO L93 Difference]: Finished difference Result 1000 states and 1690 transitions. [2024-11-18 14:04:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:04,338 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2024-11-18 14:04:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:04,342 INFO L225 Difference]: With dead ends: 1000 [2024-11-18 14:04:04,342 INFO L226 Difference]: Without dead ends: 509 [2024-11-18 14:04:04,344 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 14:04:04,346 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 1 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2537 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 14:04:04,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2537 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:04,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-18 14:04:04,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-18 14:04:04,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 406 states have (on average 1.706896551724138) internal successors, (693), 425 states have internal predecessors, (693), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 854 transitions. [2024-11-18 14:04:04,364 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 854 transitions. Word has length 82 [2024-11-18 14:04:04,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:04,364 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 854 transitions. [2024-11-18 14:04:04,364 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 854 transitions. [2024-11-18 14:04:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 14:04:04,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:04,367 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 14:04:04,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:04:04,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:04,368 INFO L85 PathProgramCache]: Analyzing trace with hash -756455802, now seen corresponding path program 1 times [2024-11-18 14:04:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753202973] [2024-11-18 14:04:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:04,534 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 14:04:04,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:04,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753202973] [2024-11-18 14:04:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753202973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:04,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:04,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:04,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544813384] [2024-11-18 14:04:04,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:04,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:04,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:04,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:04,536 INFO L87 Difference]: Start difference. First operand 509 states and 854 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:04,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:04,611 INFO L93 Difference]: Finished difference Result 966 states and 1622 transitions. [2024-11-18 14:04:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:04,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-18 14:04:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:04,616 INFO L225 Difference]: With dead ends: 966 [2024-11-18 14:04:04,616 INFO L226 Difference]: Without dead ends: 524 [2024-11-18 14:04:04,618 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 14:04:04,618 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 91 mSDsluCounter, 4139 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 4983 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:04,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 4983 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:04,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-11-18 14:04:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2024-11-18 14:04:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 416 states have (on average 1.7019230769230769) internal successors, (708), 437 states have internal predecessors, (708), 84 states have call successors, (84), 20 states have call predecessors, (84), 21 states have return successors, (81), 77 states have call predecessors, (81), 79 states have call successors, (81) [2024-11-18 14:04:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 873 transitions. [2024-11-18 14:04:04,639 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 873 transitions. Word has length 83 [2024-11-18 14:04:04,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:04,640 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 873 transitions. [2024-11-18 14:04:04,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:04,640 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 873 transitions. [2024-11-18 14:04:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 14:04:04,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:04,643 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 14:04:04,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:04:04,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:04,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1025044133, now seen corresponding path program 1 times [2024-11-18 14:04:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:04,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282506450] [2024-11-18 14:04:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:04,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:04,724 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 14:04:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:04,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282506450] [2024-11-18 14:04:04,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282506450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:04,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:04,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:04,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869522811] [2024-11-18 14:04:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:04,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:04,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:04,726 INFO L87 Difference]: Start difference. First operand 522 states and 873 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:04,752 INFO L93 Difference]: Finished difference Result 1018 states and 1716 transitions. [2024-11-18 14:04:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:04,753 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2024-11-18 14:04:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:04,756 INFO L225 Difference]: With dead ends: 1018 [2024-11-18 14:04:04,756 INFO L226 Difference]: Without dead ends: 503 [2024-11-18 14:04:04,758 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 14:04:04,760 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 0 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2539 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 14:04:04,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2539 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-18 14:04:04,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-11-18 14:04:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 400 states have (on average 1.6975) internal successors, (679), 419 states have internal predecessors, (679), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 840 transitions. [2024-11-18 14:04:04,777 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 840 transitions. Word has length 83 [2024-11-18 14:04:04,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:04,778 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 840 transitions. [2024-11-18 14:04:04,779 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, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 840 transitions. [2024-11-18 14:04:04,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 14:04:04,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:04,781 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 14:04:04,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:04:04,783 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:04,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash -124328074, now seen corresponding path program 1 times [2024-11-18 14:04:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:04,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361600808] [2024-11-18 14:04:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:04,928 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 14:04:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:04,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361600808] [2024-11-18 14:04:04,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361600808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:04,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:04,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:04,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945033479] [2024-11-18 14:04:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:04,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:04,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:04,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:04,930 INFO L87 Difference]: Start difference. First operand 503 states and 840 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:05,077 INFO L93 Difference]: Finished difference Result 963 states and 1614 transitions. [2024-11-18 14:04:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:05,078 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-18 14:04:05,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:05,081 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:04:05,081 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:04:05,083 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 14:04:05,083 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 55 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:05,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3956 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:05,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:04:05,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:04:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 400 states have (on average 1.6875) internal successors, (675), 419 states have internal predecessors, (675), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 836 transitions. [2024-11-18 14:04:05,097 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 836 transitions. Word has length 84 [2024-11-18 14:04:05,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:05,097 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 836 transitions. [2024-11-18 14:04:05,097 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 836 transitions. [2024-11-18 14:04:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 14:04:05,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:05,099 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 14:04:05,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:04:05,099 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:05,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash 411513641, now seen corresponding path program 1 times [2024-11-18 14:04:05,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:05,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121519897] [2024-11-18 14:04:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:05,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:05,208 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 14:04:05,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:05,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121519897] [2024-11-18 14:04:05,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121519897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:05,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:05,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:05,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67353012] [2024-11-18 14:04:05,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:05,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:05,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:05,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:05,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:05,210 INFO L87 Difference]: Start difference. First operand 503 states and 836 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:05,337 INFO L93 Difference]: Finished difference Result 963 states and 1610 transitions. [2024-11-18 14:04:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:05,338 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2024-11-18 14:04:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:05,342 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:04:05,342 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:04:05,344 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 14:04:05,344 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 54 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:05,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3956 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:04:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:04:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 400 states have (on average 1.6775) internal successors, (671), 419 states have internal predecessors, (671), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:05,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 832 transitions. [2024-11-18 14:04:05,357 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 832 transitions. Word has length 85 [2024-11-18 14:04:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:05,358 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 832 transitions. [2024-11-18 14:04:05,358 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,358 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 832 transitions. [2024-11-18 14:04:05,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 14:04:05,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:05,360 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 14:04:05,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:04:05,360 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:05,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:05,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1244487067, now seen corresponding path program 1 times [2024-11-18 14:04:05,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:05,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713814381] [2024-11-18 14:04:05,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:05,492 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 14:04:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:05,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713814381] [2024-11-18 14:04:05,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713814381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:05,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:05,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102017118] [2024-11-18 14:04:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:05,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:05,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:05,494 INFO L87 Difference]: Start difference. First operand 503 states and 832 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:05,627 INFO L93 Difference]: Finished difference Result 963 states and 1606 transitions. [2024-11-18 14:04:05,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:05,628 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-11-18 14:04:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:05,631 INFO L225 Difference]: With dead ends: 963 [2024-11-18 14:04:05,632 INFO L226 Difference]: Without dead ends: 512 [2024-11-18 14:04:05,634 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 14:04:05,634 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 53 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3938 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 14:04:05,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3938 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:05,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-18 14:04:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 503. [2024-11-18 14:04:05,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 400 states have (on average 1.6675) internal successors, (667), 419 states have internal predecessors, (667), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 828 transitions. [2024-11-18 14:04:05,651 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 828 transitions. Word has length 86 [2024-11-18 14:04:05,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:05,652 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 828 transitions. [2024-11-18 14:04:05,652 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:05,652 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 828 transitions. [2024-11-18 14:04:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 14:04:05,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:05,654 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 14:04:05,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:04:05,654 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:05,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:05,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1712276965, now seen corresponding path program 1 times [2024-11-18 14:04:05,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:05,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632747020] [2024-11-18 14:04:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:05,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:05,774 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 14:04:05,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:05,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632747020] [2024-11-18 14:04:05,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632747020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:05,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:05,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:05,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025135217] [2024-11-18 14:04:05,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:05,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:05,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:05,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:05,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:05,777 INFO L87 Difference]: Start difference. First operand 503 states and 828 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:05,830 INFO L93 Difference]: Finished difference Result 954 states and 1588 transitions. [2024-11-18 14:04:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:05,830 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2024-11-18 14:04:05,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:05,833 INFO L225 Difference]: With dead ends: 954 [2024-11-18 14:04:05,833 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:04:05,836 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 14:04:05,836 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 84 mSDsluCounter, 4012 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 4829 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 14:04:05,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 4829 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:05,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:04:05,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:04:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.6701846965699207) internal successors, (633), 398 states have internal predecessors, (633), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 794 transitions. [2024-11-18 14:04:05,847 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 794 transitions. Word has length 86 [2024-11-18 14:04:05,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:05,848 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 794 transitions. [2024-11-18 14:04:05,848 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:05,848 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 794 transitions. [2024-11-18 14:04:05,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 14:04:05,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:05,850 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 14:04:05,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:04:05,850 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:05,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:05,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1596358354, now seen corresponding path program 1 times [2024-11-18 14:04:05,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:05,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728233266] [2024-11-18 14:04:05,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:05,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:06,028 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 14:04:06,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:06,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728233266] [2024-11-18 14:04:06,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728233266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:06,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:06,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135442300] [2024-11-18 14:04:06,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:06,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:06,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:06,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:06,031 INFO L87 Difference]: Start difference. First operand 482 states and 794 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:06,089 INFO L93 Difference]: Finished difference Result 933 states and 1554 transitions. [2024-11-18 14:04:06,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:06,089 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2024-11-18 14:04:06,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:06,092 INFO L225 Difference]: With dead ends: 933 [2024-11-18 14:04:06,092 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:04:06,094 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 14:04:06,095 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 17 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3876 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 14:04:06,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3876 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:04:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:04:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.6675461741424802) internal successors, (632), 398 states have internal predecessors, (632), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:06,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 793 transitions. [2024-11-18 14:04:06,108 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 793 transitions. Word has length 87 [2024-11-18 14:04:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:06,108 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 793 transitions. [2024-11-18 14:04:06,108 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,108 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 793 transitions. [2024-11-18 14:04:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 14:04:06,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:06,110 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 14:04:06,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:04:06,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:06,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1933496256, now seen corresponding path program 1 times [2024-11-18 14:04:06,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:06,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113413001] [2024-11-18 14:04:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:06,200 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 14:04:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:06,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113413001] [2024-11-18 14:04:06,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113413001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:06,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:06,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:06,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591279138] [2024-11-18 14:04:06,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:06,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:06,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:06,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:06,202 INFO L87 Difference]: Start difference. First operand 482 states and 793 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:06,252 INFO L93 Difference]: Finished difference Result 933 states and 1553 transitions. [2024-11-18 14:04:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:06,252 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2024-11-18 14:04:06,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:06,255 INFO L225 Difference]: With dead ends: 933 [2024-11-18 14:04:06,256 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:04:06,257 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 14:04:06,258 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 16 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3876 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 14:04:06,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3876 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:04:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:04:06,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.6649076517150396) internal successors, (631), 398 states have internal predecessors, (631), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 792 transitions. [2024-11-18 14:04:06,269 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 792 transitions. Word has length 88 [2024-11-18 14:04:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:06,269 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 792 transitions. [2024-11-18 14:04:06,270 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, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 792 transitions. [2024-11-18 14:04:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:04:06,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:06,271 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 14:04:06,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:04:06,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:06,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:06,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1091588915, now seen corresponding path program 1 times [2024-11-18 14:04:06,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:06,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873260210] [2024-11-18 14:04:06,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:06,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:06,350 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 14:04:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:06,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873260210] [2024-11-18 14:04:06,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873260210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:06,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:06,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:06,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434494600] [2024-11-18 14:04:06,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:06,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:06,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:06,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:06,352 INFO L87 Difference]: Start difference. First operand 482 states and 792 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:06,382 INFO L93 Difference]: Finished difference Result 927 states and 1541 transitions. [2024-11-18 14:04:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2024-11-18 14:04:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:06,386 INFO L225 Difference]: With dead ends: 927 [2024-11-18 14:04:06,386 INFO L226 Difference]: Without dead ends: 482 [2024-11-18 14:04:06,387 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 14:04:06,388 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 5 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:06,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2330 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:06,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-18 14:04:06,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-18 14:04:06,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 379 states have (on average 1.6622691292875988) internal successors, (630), 398 states have internal predecessors, (630), 83 states have call successors, (83), 20 states have call predecessors, (83), 19 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-18 14:04:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 791 transitions. [2024-11-18 14:04:06,399 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 791 transitions. Word has length 89 [2024-11-18 14:04:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:06,399 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 791 transitions. [2024-11-18 14:04:06,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:04:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 791 transitions. [2024-11-18 14:04:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 14:04:06,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:06,401 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] [2024-11-18 14:04:06,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:04:06,402 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:06,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:06,402 INFO L85 PathProgramCache]: Analyzing trace with hash 530072245, now seen corresponding path program 1 times [2024-11-18 14:04:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147829971] [2024-11-18 14:04:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:06,570 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 14:04:06,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:06,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147829971] [2024-11-18 14:04:06,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147829971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:06,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:06,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:04:06,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652568900] [2024-11-18 14:04:06,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:06,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:04:06,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:06,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:04:06,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:04:06,572 INFO L87 Difference]: Start difference. First operand 482 states and 791 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, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:07,844 INFO L93 Difference]: Finished difference Result 923 states and 1553 transitions. [2024-11-18 14:04:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:04:07,845 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, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 90 [2024-11-18 14:04:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:07,848 INFO L225 Difference]: With dead ends: 923 [2024-11-18 14:04:07,848 INFO L226 Difference]: Without dead ends: 486 [2024-11-18 14:04:07,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:04:07,851 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 1226 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:07,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1545 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 14:04:07,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-18 14:04:07,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-18 14:04:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 382 states have (on average 1.6570680628272252) internal successors, (633), 401 states have internal predecessors, (633), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (94), 77 states have call predecessors, (94), 78 states have call successors, (94) [2024-11-18 14:04:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 810 transitions. [2024-11-18 14:04:07,869 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 810 transitions. Word has length 90 [2024-11-18 14:04:07,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:07,870 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 810 transitions. [2024-11-18 14:04:07,870 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, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:04:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 810 transitions. [2024-11-18 14:04:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:04:07,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:07,872 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 14:04:07,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:04:07,872 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:07,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1770440637, now seen corresponding path program 1 times [2024-11-18 14:04:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:07,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691061219] [2024-11-18 14:04:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:07,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:08,000 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 14:04:08,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:08,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691061219] [2024-11-18 14:04:08,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691061219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:08,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:08,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:08,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995042865] [2024-11-18 14:04:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:08,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:08,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:08,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:08,002 INFO L87 Difference]: Start difference. First operand 486 states and 810 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:10,570 INFO L93 Difference]: Finished difference Result 1710 states and 2947 transitions. [2024-11-18 14:04:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:04:10,570 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 91 [2024-11-18 14:04:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:10,578 INFO L225 Difference]: With dead ends: 1710 [2024-11-18 14:04:10,578 INFO L226 Difference]: Without dead ends: 1269 [2024-11-18 14:04:10,581 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 14:04:10,582 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 2208 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 4923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:10,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 2353 Invalid, 4923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 14:04:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-18 14:04:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1210. [2024-11-18 14:04:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 948 states have (on average 1.6708860759493671) internal successors, (1584), 996 states have internal predecessors, (1584), 210 states have call successors, (210), 51 states have call predecessors, (210), 51 states have return successors, (225), 199 states have call predecessors, (225), 205 states have call successors, (225) [2024-11-18 14:04:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 2019 transitions. [2024-11-18 14:04:10,651 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 2019 transitions. Word has length 91 [2024-11-18 14:04:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:10,652 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 2019 transitions. [2024-11-18 14:04:10,652 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 2019 transitions. [2024-11-18 14:04:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:04:10,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:10,654 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] [2024-11-18 14:04:10,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:04:10,654 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:10,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash -620956810, now seen corresponding path program 1 times [2024-11-18 14:04:10,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:10,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198169406] [2024-11-18 14:04:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:10,774 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 14:04:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198169406] [2024-11-18 14:04:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198169406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169063898] [2024-11-18 14:04:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:10,776 INFO L87 Difference]: Start difference. First operand 1210 states and 2019 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:13,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:13,771 INFO L93 Difference]: Finished difference Result 5604 states and 9664 transitions. [2024-11-18 14:04:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:04:13,772 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 93 [2024-11-18 14:04:13,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:13,805 INFO L225 Difference]: With dead ends: 5604 [2024-11-18 14:04:13,805 INFO L226 Difference]: Without dead ends: 4439 [2024-11-18 14:04:13,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:04:13,815 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 2939 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 5088 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3056 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 5859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 5088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:13,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3056 Valid, 2616 Invalid, 5859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 5088 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-18 14:04:13,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4439 states. [2024-11-18 14:04:14,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4439 to 3958. [2024-11-18 14:04:14,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3958 states, 2927 states have (on average 1.665186197471814) internal successors, (4874), 3139 states have internal predecessors, (4874), 877 states have call successors, (877), 137 states have call predecessors, (877), 153 states have return successors, (1071), 855 states have call predecessors, (1071), 872 states have call successors, (1071) [2024-11-18 14:04:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 6822 transitions. [2024-11-18 14:04:14,057 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 6822 transitions. Word has length 93 [2024-11-18 14:04:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:14,057 INFO L471 AbstractCegarLoop]: Abstraction has 3958 states and 6822 transitions. [2024-11-18 14:04:14,057 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 6822 transitions. [2024-11-18 14:04:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:04:14,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:14,059 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] [2024-11-18 14:04:14,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:04:14,060 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:14,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash -197310088, now seen corresponding path program 1 times [2024-11-18 14:04:14,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:14,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240425853] [2024-11-18 14:04:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:14,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:14,182 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 14:04:14,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:14,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240425853] [2024-11-18 14:04:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240425853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:14,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:14,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:14,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438649159] [2024-11-18 14:04:14,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:14,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:14,184 INFO L87 Difference]: Start difference. First operand 3958 states and 6822 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:16,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:16,307 INFO L93 Difference]: Finished difference Result 10493 states and 18202 transitions. [2024-11-18 14:04:16,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 14:04:16,307 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 93 [2024-11-18 14:04:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:16,349 INFO L225 Difference]: With dead ends: 10493 [2024-11-18 14:04:16,350 INFO L226 Difference]: Without dead ends: 7629 [2024-11-18 14:04:16,365 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 14:04:16,366 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 2206 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 3387 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 3387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:16,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 1684 Invalid, 3833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 3387 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 14:04:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2024-11-18 14:04:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 7328. [2024-11-18 14:04:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7328 states, 5458 states have (on average 1.6626969585928912) internal successors, (9075), 5848 states have internal predecessors, (9075), 1557 states have call successors, (1557), 254 states have call predecessors, (1557), 312 states have return successors, (2030), 1516 states have call predecessors, (2030), 1552 states have call successors, (2030) [2024-11-18 14:04:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7328 states to 7328 states and 12662 transitions. [2024-11-18 14:04:16,730 INFO L78 Accepts]: Start accepts. Automaton has 7328 states and 12662 transitions. Word has length 93 [2024-11-18 14:04:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:16,730 INFO L471 AbstractCegarLoop]: Abstraction has 7328 states and 12662 transitions. [2024-11-18 14:04:16,730 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, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-18 14:04:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7328 states and 12662 transitions. [2024-11-18 14:04:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-18 14:04:16,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:16,732 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] [2024-11-18 14:04:16,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:04:16,732 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:16,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1306485089, now seen corresponding path program 1 times [2024-11-18 14:04:16,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:16,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813405463] [2024-11-18 14:04:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:16,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:16,850 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 14:04:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813405463] [2024-11-18 14:04:16,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813405463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:16,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:16,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:04:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041386019] [2024-11-18 14:04:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:16,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:04:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:16,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:04:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:04:16,853 INFO L87 Difference]: Start difference. First operand 7328 states and 12662 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-18 14:04:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:17,159 INFO L93 Difference]: Finished difference Result 13484 states and 23362 transitions. [2024-11-18 14:04:17,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:04:17,159 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-11-18 14:04:17,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:17,205 INFO L225 Difference]: With dead ends: 13484 [2024-11-18 14:04:17,205 INFO L226 Difference]: Without dead ends: 7415 [2024-11-18 14:04:17,233 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 14:04:17,234 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 0 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3126 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 14:04:17,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3126 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:17,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2024-11-18 14:04:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 7401. [2024-11-18 14:04:17,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7401 states, 5514 states have (on average 1.6554225607544433) internal successors, (9128), 5903 states have internal predecessors, (9128), 1554 states have call successors, (1554), 254 states have call predecessors, (1554), 332 states have return successors, (2093), 1534 states have call predecessors, (2093), 1549 states have call successors, (2093) [2024-11-18 14:04:17,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 12775 transitions. [2024-11-18 14:04:17,653 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 12775 transitions. Word has length 98 [2024-11-18 14:04:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:17,653 INFO L471 AbstractCegarLoop]: Abstraction has 7401 states and 12775 transitions. [2024-11-18 14:04:17,654 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-18 14:04:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 12775 transitions. [2024-11-18 14:04:17,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 14:04:17,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:17,656 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, 1, 1] [2024-11-18 14:04:17,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:04:17,656 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:17,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1054452740, now seen corresponding path program 1 times [2024-11-18 14:04:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:17,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102602207] [2024-11-18 14:04:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:17,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:17,794 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 14:04:17,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:17,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102602207] [2024-11-18 14:04:17,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102602207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:17,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:17,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:04:17,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033268796] [2024-11-18 14:04:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:17,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:04:17,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:17,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:04:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:04:17,798 INFO L87 Difference]: Start difference. First operand 7401 states and 12775 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-18 14:04:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:18,278 INFO L93 Difference]: Finished difference Result 14710 states and 25835 transitions. [2024-11-18 14:04:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:04:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 105 [2024-11-18 14:04:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:18,328 INFO L225 Difference]: With dead ends: 14710 [2024-11-18 14:04:18,328 INFO L226 Difference]: Without dead ends: 7549 [2024-11-18 14:04:18,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:04:18,356 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 243 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:18,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 6339 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:18,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7549 states. [2024-11-18 14:04:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7549 to 7425. [2024-11-18 14:04:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7425 states, 5535 states have (on average 1.6312556458897922) internal successors, (9029), 5927 states have internal predecessors, (9029), 1554 states have call successors, (1554), 254 states have call predecessors, (1554), 335 states have return successors, (2105), 1534 states have call predecessors, (2105), 1549 states have call successors, (2105) [2024-11-18 14:04:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7425 states to 7425 states and 12688 transitions. [2024-11-18 14:04:18,691 INFO L78 Accepts]: Start accepts. Automaton has 7425 states and 12688 transitions. Word has length 105 [2024-11-18 14:04:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:18,692 INFO L471 AbstractCegarLoop]: Abstraction has 7425 states and 12688 transitions. [2024-11-18 14:04:18,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-18 14:04:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 7425 states and 12688 transitions. [2024-11-18 14:04:18,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 14:04:18,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:18,695 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, 1, 1] [2024-11-18 14:04:18,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:04:18,695 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:18,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:18,696 INFO L85 PathProgramCache]: Analyzing trace with hash 308026620, now seen corresponding path program 1 times [2024-11-18 14:04:18,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:18,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541064012] [2024-11-18 14:04:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:18,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:18,848 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 14:04:18,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:18,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541064012] [2024-11-18 14:04:18,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541064012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:18,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:18,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:18,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005714659] [2024-11-18 14:04:18,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:18,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:18,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:18,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:18,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:18,851 INFO L87 Difference]: Start difference. First operand 7425 states and 12688 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-18 14:04:20,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:20,619 INFO L93 Difference]: Finished difference Result 14125 states and 24170 transitions. [2024-11-18 14:04:20,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:04:20,619 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), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 110 [2024-11-18 14:04:20,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:20,682 INFO L225 Difference]: With dead ends: 14125 [2024-11-18 14:04:20,682 INFO L226 Difference]: Without dead ends: 7975 [2024-11-18 14:04:20,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:04:20,715 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1954 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:20,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 1499 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:04:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7975 states. [2024-11-18 14:04:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7975 to 7656. [2024-11-18 14:04:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7656 states, 5708 states have (on average 1.6194814295725297) internal successors, (9244), 6118 states have internal predecessors, (9244), 1571 states have call successors, (1571), 280 states have call predecessors, (1571), 376 states have return successors, (2194), 1548 states have call predecessors, (2194), 1566 states have call successors, (2194) [2024-11-18 14:04:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7656 states to 7656 states and 13009 transitions. [2024-11-18 14:04:21,188 INFO L78 Accepts]: Start accepts. Automaton has 7656 states and 13009 transitions. Word has length 110 [2024-11-18 14:04:21,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:21,188 INFO L471 AbstractCegarLoop]: Abstraction has 7656 states and 13009 transitions. [2024-11-18 14:04:21,189 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), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-18 14:04:21,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7656 states and 13009 transitions. [2024-11-18 14:04:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:04:21,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:21,191 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] [2024-11-18 14:04:21,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:04:21,191 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:21,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -561436419, now seen corresponding path program 1 times [2024-11-18 14:04:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814205923] [2024-11-18 14:04:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:21,407 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 14:04:21,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814205923] [2024-11-18 14:04:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814205923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:21,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:21,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 14:04:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261371067] [2024-11-18 14:04:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:21,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 14:04:21,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:21,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 14:04:21,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:04:21,449 INFO L87 Difference]: Start difference. First operand 7656 states and 13009 transitions. Second operand has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-18 14:04:24,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:24,546 INFO L93 Difference]: Finished difference Result 16139 states and 27148 transitions. [2024-11-18 14:04:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 14:04:24,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 117 [2024-11-18 14:04:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:24,585 INFO L225 Difference]: With dead ends: 16139 [2024-11-18 14:04:24,585 INFO L226 Difference]: Without dead ends: 9577 [2024-11-18 14:04:24,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:04:24,601 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 2132 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 7747 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 8171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 7747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:24,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 3620 Invalid, 8171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 7747 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 14:04:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2024-11-18 14:04:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 9130. [2024-11-18 14:04:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 6874 states have (on average 1.594850160023276) internal successors, (10963), 7343 states have internal predecessors, (10963), 1754 states have call successors, (1754), 367 states have call predecessors, (1754), 501 states have return successors, (2467), 1710 states have call predecessors, (2467), 1749 states have call successors, (2467) [2024-11-18 14:04:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 15184 transitions. [2024-11-18 14:04:24,938 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 15184 transitions. Word has length 117 [2024-11-18 14:04:24,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:24,939 INFO L471 AbstractCegarLoop]: Abstraction has 9130 states and 15184 transitions. [2024-11-18 14:04:24,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 7 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-18 14:04:24,939 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 15184 transitions. [2024-11-18 14:04:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:04:24,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:24,941 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] [2024-11-18 14:04:24,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:04:24,942 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1744783716, now seen corresponding path program 1 times [2024-11-18 14:04:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:24,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144498743] [2024-11-18 14:04:24,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:25,064 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 14:04:25,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144498743] [2024-11-18 14:04:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144498743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:25,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:25,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:04:25,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828791769] [2024-11-18 14:04:25,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:25,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:04:25,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:25,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:04:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:04:25,067 INFO L87 Difference]: Start difference. First operand 9130 states and 15184 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:04:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:25,557 INFO L93 Difference]: Finished difference Result 21454 states and 35775 transitions. [2024-11-18 14:04:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2024-11-18 14:04:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:25,626 INFO L225 Difference]: With dead ends: 21454 [2024-11-18 14:04:25,626 INFO L226 Difference]: Without dead ends: 13599 [2024-11-18 14:04:25,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:04:25,655 INFO L432 NwaCegarLoop]: 1289 mSDtfsCounter, 742 mSDsluCounter, 7152 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 8441 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:25,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 8441 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13599 states. [2024-11-18 14:04:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13599 to 11745. [2024-11-18 14:04:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11745 states, 8822 states have (on average 1.6087055089548856) internal successors, (14192), 9424 states have internal predecessors, (14192), 2313 states have call successors, (2313), 450 states have call predecessors, (2313), 609 states have return successors, (3194), 2278 states have call predecessors, (3194), 2308 states have call successors, (3194) [2024-11-18 14:04:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11745 states to 11745 states and 19699 transitions. [2024-11-18 14:04:26,443 INFO L78 Accepts]: Start accepts. Automaton has 11745 states and 19699 transitions. Word has length 117 [2024-11-18 14:04:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:26,444 INFO L471 AbstractCegarLoop]: Abstraction has 11745 states and 19699 transitions. [2024-11-18 14:04:26,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:04:26,445 INFO L276 IsEmpty]: Start isEmpty. Operand 11745 states and 19699 transitions. [2024-11-18 14:04:26,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:04:26,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:26,448 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] [2024-11-18 14:04:26,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:04:26,448 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:26,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:26,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1604235106, now seen corresponding path program 1 times [2024-11-18 14:04:26,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:26,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322877813] [2024-11-18 14:04:26,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:26,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:26,700 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 14:04:26,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:26,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322877813] [2024-11-18 14:04:26,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322877813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:26,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:26,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 14:04:26,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929836451] [2024-11-18 14:04:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:26,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 14:04:26,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 14:04:26,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:04:26,703 INFO L87 Difference]: Start difference. First operand 11745 states and 19699 transitions. Second operand has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-18 14:04:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:30,996 INFO L93 Difference]: Finished difference Result 40971 states and 71347 transitions. [2024-11-18 14:04:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:04:30,997 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 117 [2024-11-18 14:04:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:31,212 INFO L225 Difference]: With dead ends: 40971 [2024-11-18 14:04:31,212 INFO L226 Difference]: Without dead ends: 29271 [2024-11-18 14:04:31,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-11-18 14:04:31,274 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 3073 mSDsluCounter, 5416 mSDsCounter, 0 mSdLazyCounter, 8618 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 6212 SdHoareTripleChecker+Invalid, 9498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 8618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:31,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 6212 Invalid, 9498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 8618 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 14:04:31,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29271 states. [2024-11-18 14:04:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29271 to 29062. [2024-11-18 14:04:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29062 states, 20490 states have (on average 1.584480234260615) internal successors, (32466), 22293 states have internal predecessors, (32466), 7269 states have call successors, (7269), 895 states have call predecessors, (7269), 1302 states have return successors, (10336), 7249 states have call predecessors, (10336), 7264 states have call successors, (10336) [2024-11-18 14:04:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29062 states to 29062 states and 50071 transitions. [2024-11-18 14:04:33,141 INFO L78 Accepts]: Start accepts. Automaton has 29062 states and 50071 transitions. Word has length 117 [2024-11-18 14:04:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:33,142 INFO L471 AbstractCegarLoop]: Abstraction has 29062 states and 50071 transitions. [2024-11-18 14:04:33,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-18 14:04:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 29062 states and 50071 transitions. [2024-11-18 14:04:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:04:33,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:33,146 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] [2024-11-18 14:04:33,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:04:33,146 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:33,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1537128771, now seen corresponding path program 1 times [2024-11-18 14:04:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784068441] [2024-11-18 14:04:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:33,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:33,395 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 14:04:33,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:33,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784068441] [2024-11-18 14:04:33,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784068441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:33,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:33,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 14:04:33,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819176383] [2024-11-18 14:04:33,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:33,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 14:04:33,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 14:04:33,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:04:33,397 INFO L87 Difference]: Start difference. First operand 29062 states and 50071 transitions. Second operand has 12 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-18 14:04:41,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:41,671 INFO L93 Difference]: Finished difference Result 108463 states and 195058 transitions. [2024-11-18 14:04:41,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:04:41,672 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 118 [2024-11-18 14:04:41,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:42,489 INFO L225 Difference]: With dead ends: 108463 [2024-11-18 14:04:42,489 INFO L226 Difference]: Without dead ends: 79446 [2024-11-18 14:04:42,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-11-18 14:04:42,641 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 3071 mSDsluCounter, 5371 mSDsCounter, 0 mSdLazyCounter, 8622 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 6160 SdHoareTripleChecker+Invalid, 9495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 8622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:42,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 6160 Invalid, 9495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [873 Valid, 8622 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-18 14:04:42,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79446 states. [2024-11-18 14:04:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79446 to 79045. [2024-11-18 14:04:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79045 states, 51862 states have (on average 1.5587135089275386) internal successors, (80838), 57495 states have internal predecessors, (80838), 24342 states have call successors, (24342), 1785 states have call predecessors, (24342), 2840 states have return successors, (36160), 24518 states have call predecessors, (36160), 24337 states have call successors, (36160) [2024-11-18 14:04:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79045 states to 79045 states and 141340 transitions. [2024-11-18 14:04:49,241 INFO L78 Accepts]: Start accepts. Automaton has 79045 states and 141340 transitions. Word has length 118 [2024-11-18 14:04:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:49,243 INFO L471 AbstractCegarLoop]: Abstraction has 79045 states and 141340 transitions. [2024-11-18 14:04:49,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-18 14:04:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 79045 states and 141340 transitions. [2024-11-18 14:04:49,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:04:49,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:49,249 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 14:04:49,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:04:49,249 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:49,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:49,249 INFO L85 PathProgramCache]: Analyzing trace with hash 849845498, now seen corresponding path program 1 times [2024-11-18 14:04:49,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:49,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226835280] [2024-11-18 14:04:49,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:49,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:49,787 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 14:04:49,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:49,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226835280] [2024-11-18 14:04:49,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226835280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:49,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:49,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 14:04:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109583447] [2024-11-18 14:04:49,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:49,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 14:04:49,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:49,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 14:04:49,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:04:49,789 INFO L87 Difference]: Start difference. First operand 79045 states and 141340 transitions. Second operand has 12 states, 10 states have (on average 8.8) internal successors, (88), 10 states have internal predecessors, (88), 6 states have call successors, (14), 3 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13)