./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec3_product25.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 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:48:23,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:48:23,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:48:23,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:48:23,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:48:23,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:48:23,143 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:48:23,143 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:48:23,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:48:23,144 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:48:23,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:48:23,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:48:23,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:48:23,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:48:23,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:48:23,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:48:23,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:48:23,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:48:23,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:48:23,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:48:23,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:48:23,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:48:23,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:48:23,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:48:23,149 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:48:23,149 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:48:23,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:48:23,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:48:23,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:48:23,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:48:23,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:48:23,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:48:23,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:48:23,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:48:23,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:48:23,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:48:23,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:48:23,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:48:23,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:48:23,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:48:23,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:48:23,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:48:23,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dffe766d259411d55a5393012f150d80e63eb09c0b69cb40e513f715e96f78e [2024-11-22 01:48:23,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:48:23,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:48:23,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:48:23,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:48:23,352 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:48:23,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2024-11-22 01:48:24,808 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:48:25,178 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:48:25,179 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product25.cil.c [2024-11-22 01:48:25,206 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7c69da/c2fcef89e5ee4a1baa30c9fdfab26978/FLAGf0993f0e2 [2024-11-22 01:48:25,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6c7c69da/c2fcef89e5ee4a1baa30c9fdfab26978 [2024-11-22 01:48:25,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:48:25,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:48:25,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:48:25,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:48:25,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:48:25,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:48:25" (1/1) ... [2024-11-22 01:48:25,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e88ed74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:25, skipping insertion in model container [2024-11-22 01:48:25,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:48:25" (1/1) ... [2024-11-22 01:48:25,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:48:25,667 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_spec3_product25.cil.c[27637,27650] [2024-11-22 01:48:25,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:48:25,823 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:48:25,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-22 01:48:25,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] [2024-11-22 01:48:25,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1082] [2024-11-22 01:48:25,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1120] [2024-11-22 01:48:25,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1129] [2024-11-22 01:48:25,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1485] [2024-11-22 01:48:25,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1579] [2024-11-22 01:48:25,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1594] [2024-11-22 01:48:25,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3062] [2024-11-22 01:48:25,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3248] [2024-11-22 01:48:25,883 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_spec3_product25.cil.c[27637,27650] [2024-11-22 01:48:25,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:48:26,023 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:48:26,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26 WrapperNode [2024-11-22 01:48:26,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:48:26,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:48:26,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:48:26,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:48:26,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,091 INFO L138 Inliner]: procedures = 89, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 841 [2024-11-22 01:48:26,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:48:26,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:48:26,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:48:26,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:48:26,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,146 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-22 01:48:26,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,176 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:48:26,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:48:26,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:48:26,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:48:26,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (1/1) ... [2024-11-22 01:48:26,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:48:26,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:26,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:48:26,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:48:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:48:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-22 01:48:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-22 01:48:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:48:26,299 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:48:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:48:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:48:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:48:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:48:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-22 01:48:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-22 01:48:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:48:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:48:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:48:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:48:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:48:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:48:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:48:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:48:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:48:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:48:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:48:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:48:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:48:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:48:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-22 01:48:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-22 01:48:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:48:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:48:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:48:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:48:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-22 01:48:26,302 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-22 01:48:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:48:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:48:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:48:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:48:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:48:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:48:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:48:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:48:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:48:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:48:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:48:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:48:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:48:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:48:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:48:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:48:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:48:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:48:26,490 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:48:26,495 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:48:27,587 INFO L? ?]: Removed 447 outVars from TransFormulas that were not future-live. [2024-11-22 01:48:27,587 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:48:27,633 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:48:27,641 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:48:27,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:48:27 BoogieIcfgContainer [2024-11-22 01:48:27,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:48:27,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:48:27,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:48:27,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:48:27,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:48:25" (1/3) ... [2024-11-22 01:48:27,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612e8bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:48:27, skipping insertion in model container [2024-11-22 01:48:27,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:48:26" (2/3) ... [2024-11-22 01:48:27,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612e8bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:48:27, skipping insertion in model container [2024-11-22 01:48:27,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:48:27" (3/3) ... [2024-11-22 01:48:27,654 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product25.cil.c [2024-11-22 01:48:27,671 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:48:27,671 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:48:27,742 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:48:27,748 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;@1be54b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:48:27,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:48:27,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 462 states have internal predecessors, (750), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-22 01:48:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-22 01:48:27,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:27,777 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] [2024-11-22 01:48:27,778 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:27,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:27,782 INFO L85 PathProgramCache]: Analyzing trace with hash 779665332, now seen corresponding path program 1 times [2024-11-22 01:48:27,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:27,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046815860] [2024-11-22 01:48:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:27,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:28,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:28,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046815860] [2024-11-22 01:48:28,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046815860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:28,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:28,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:28,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400202871] [2024-11-22 01:48:28,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:28,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:28,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:28,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:28,573 INFO L87 Difference]: Start difference. First operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 462 states have internal predecessors, (750), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:28,939 INFO L93 Difference]: Finished difference Result 1137 states and 1912 transitions. [2024-11-22 01:48:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:28,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2024-11-22 01:48:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:28,973 INFO L225 Difference]: With dead ends: 1137 [2024-11-22 01:48:28,977 INFO L226 Difference]: Without dead ends: 575 [2024-11-22 01:48:28,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:29,001 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 91 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5507 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:29,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5507 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-22 01:48:29,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 573. [2024-11-22 01:48:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 447 states have (on average 1.680089485458613) internal successors, (751), 465 states have internal predecessors, (751), 101 states have call successors, (101), 24 states have call predecessors, (101), 24 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2024-11-22 01:48:29,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 952 transitions. [2024-11-22 01:48:29,174 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 952 transitions. Word has length 85 [2024-11-22 01:48:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:29,175 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 952 transitions. [2024-11-22 01:48:29,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 952 transitions. [2024-11-22 01:48:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 01:48:29,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:29,189 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] [2024-11-22 01:48:29,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:48:29,193 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:29,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1669910648, now seen corresponding path program 1 times [2024-11-22 01:48:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:29,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634232692] [2024-11-22 01:48:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:29,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:29,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634232692] [2024-11-22 01:48:29,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634232692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:29,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089652484] [2024-11-22 01:48:29,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:29,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:29,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:29,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:29,638 INFO L87 Difference]: Start difference. First operand 573 states and 952 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:29,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:29,778 INFO L93 Difference]: Finished difference Result 1141 states and 1907 transitions. [2024-11-22 01:48:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:29,779 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 86 [2024-11-22 01:48:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:29,789 INFO L225 Difference]: With dead ends: 1141 [2024-11-22 01:48:29,793 INFO L226 Difference]: Without dead ends: 584 [2024-11-22 01:48:29,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:29,801 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 90 mSDsluCounter, 4569 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:29,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5502 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:29,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2024-11-22 01:48:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 573. [2024-11-22 01:48:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 447 states have (on average 1.680089485458613) internal successors, (751), 465 states have internal predecessors, (751), 101 states have call successors, (101), 24 states have call predecessors, (101), 24 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2024-11-22 01:48:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 952 transitions. [2024-11-22 01:48:29,837 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 952 transitions. Word has length 86 [2024-11-22 01:48:29,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:29,837 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 952 transitions. [2024-11-22 01:48:29,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 952 transitions. [2024-11-22 01:48:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-22 01:48:29,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:29,841 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] [2024-11-22 01:48:29,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:48:29,841 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:29,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1301787151, now seen corresponding path program 1 times [2024-11-22 01:48:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:29,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302617056] [2024-11-22 01:48:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:30,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:30,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302617056] [2024-11-22 01:48:30,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302617056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:30,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:30,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:30,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912029781] [2024-11-22 01:48:30,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:30,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:30,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:30,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:30,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:30,030 INFO L87 Difference]: Start difference. First operand 573 states and 952 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:30,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:30,082 INFO L93 Difference]: Finished difference Result 1128 states and 1885 transitions. [2024-11-22 01:48:30,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:30,082 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2024-11-22 01:48:30,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:30,086 INFO L225 Difference]: With dead ends: 1128 [2024-11-22 01:48:30,086 INFO L226 Difference]: Without dead ends: 543 [2024-11-22 01:48:30,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:30,091 INFO L432 NwaCegarLoop]: 922 mSDtfsCounter, 14 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:30,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2761 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-22 01:48:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2024-11-22 01:48:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 420 states have (on average 1.6642857142857144) internal successors, (699), 436 states have internal predecessors, (699), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 896 transitions. [2024-11-22 01:48:30,113 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 896 transitions. Word has length 86 [2024-11-22 01:48:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:30,113 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 896 transitions. [2024-11-22 01:48:30,114 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 896 transitions. [2024-11-22 01:48:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-22 01:48:30,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:30,116 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] [2024-11-22 01:48:30,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:48:30,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:30,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:30,117 INFO L85 PathProgramCache]: Analyzing trace with hash 705405784, now seen corresponding path program 1 times [2024-11-22 01:48:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:30,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006765456] [2024-11-22 01:48:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:30,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:30,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006765456] [2024-11-22 01:48:30,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006765456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:30,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635245815] [2024-11-22 01:48:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:30,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:30,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:30,299 INFO L87 Difference]: Start difference. First operand 543 states and 896 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:30,364 INFO L93 Difference]: Finished difference Result 1079 states and 1791 transitions. [2024-11-22 01:48:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:30,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2024-11-22 01:48:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:30,368 INFO L225 Difference]: With dead ends: 1079 [2024-11-22 01:48:30,368 INFO L226 Difference]: Without dead ends: 537 [2024-11-22 01:48:30,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:30,371 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 63 mSDsluCounter, 4372 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5258 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:30,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5258 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-22 01:48:30,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-11-22 01:48:30,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 414 states have (on average 1.6570048309178744) internal successors, (686), 430 states have internal predecessors, (686), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 883 transitions. [2024-11-22 01:48:30,392 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 883 transitions. Word has length 87 [2024-11-22 01:48:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:30,392 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 883 transitions. [2024-11-22 01:48:30,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 883 transitions. [2024-11-22 01:48:30,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 01:48:30,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:30,395 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] [2024-11-22 01:48:30,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:48:30,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:30,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1921779812, now seen corresponding path program 1 times [2024-11-22 01:48:30,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:30,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744990858] [2024-11-22 01:48:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744990858] [2024-11-22 01:48:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744990858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:30,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:30,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338806830] [2024-11-22 01:48:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:30,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:30,584 INFO L87 Difference]: Start difference. First operand 537 states and 883 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:30,649 INFO L93 Difference]: Finished difference Result 1067 states and 1765 transitions. [2024-11-22 01:48:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:30,650 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2024-11-22 01:48:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:30,653 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 01:48:30,653 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:30,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:30,656 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 49 mSDsluCounter, 4324 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:30,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 5198 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:30,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6495098039215685) internal successors, (673), 424 states have internal predecessors, (673), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:30,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 870 transitions. [2024-11-22 01:48:30,675 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 870 transitions. Word has length 88 [2024-11-22 01:48:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:30,676 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 870 transitions. [2024-11-22 01:48:30,676 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 870 transitions. [2024-11-22 01:48:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 01:48:30,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:30,679 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] [2024-11-22 01:48:30,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:48:30,679 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:30,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:30,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1563428707, now seen corresponding path program 1 times [2024-11-22 01:48:30,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:30,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175877271] [2024-11-22 01:48:30,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:30,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:30,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:30,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:30,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175877271] [2024-11-22 01:48:30,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175877271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:30,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:30,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:48:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559351967] [2024-11-22 01:48:30,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:30,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:48:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:30,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:48:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:30,827 INFO L87 Difference]: Start difference. First operand 531 states and 870 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:30,881 INFO L93 Difference]: Finished difference Result 1055 states and 1739 transitions. [2024-11-22 01:48:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:48:30,882 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2024-11-22 01:48:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:30,885 INFO L225 Difference]: With dead ends: 1055 [2024-11-22 01:48:30,885 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:30,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:48:30,889 INFO L432 NwaCegarLoop]: 862 mSDtfsCounter, 24 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5150 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:30,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5150 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:30,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6470588235294117) internal successors, (672), 424 states have internal predecessors, (672), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 869 transitions. [2024-11-22 01:48:30,906 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 869 transitions. Word has length 88 [2024-11-22 01:48:30,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:30,907 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 869 transitions. [2024-11-22 01:48:30,907 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:30,907 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 869 transitions. [2024-11-22 01:48:30,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-22 01:48:30,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:30,909 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] [2024-11-22 01:48:30,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:48:30,909 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:30,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash -257493252, now seen corresponding path program 1 times [2024-11-22 01:48:30,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:30,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023237162] [2024-11-22 01:48:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:30,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:31,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:31,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023237162] [2024-11-22 01:48:31,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023237162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:31,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:31,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205762789] [2024-11-22 01:48:31,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:31,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:31,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:31,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:31,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,026 INFO L87 Difference]: Start difference. First operand 531 states and 869 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:31,070 INFO L93 Difference]: Finished difference Result 1046 states and 1724 transitions. [2024-11-22 01:48:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:31,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2024-11-22 01:48:31,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:31,074 INFO L225 Difference]: With dead ends: 1046 [2024-11-22 01:48:31,075 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:31,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,077 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 15 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:31,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2547 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:31,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:31,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6446078431372548) internal successors, (671), 424 states have internal predecessors, (671), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 868 transitions. [2024-11-22 01:48:31,095 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 868 transitions. Word has length 89 [2024-11-22 01:48:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:31,095 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 868 transitions. [2024-11-22 01:48:31,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 868 transitions. [2024-11-22 01:48:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 01:48:31,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:31,098 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] [2024-11-22 01:48:31,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:48:31,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:31,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:31,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1217645444, now seen corresponding path program 1 times [2024-11-22 01:48:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544899260] [2024-11-22 01:48:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:31,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:31,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:31,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544899260] [2024-11-22 01:48:31,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544899260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:31,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:31,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:31,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724864160] [2024-11-22 01:48:31,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:31,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:31,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,205 INFO L87 Difference]: Start difference. First operand 531 states and 868 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:31,250 INFO L93 Difference]: Finished difference Result 1046 states and 1722 transitions. [2024-11-22 01:48:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:31,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2024-11-22 01:48:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:31,257 INFO L225 Difference]: With dead ends: 1046 [2024-11-22 01:48:31,257 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:31,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,261 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 14 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:31,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2549 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.642156862745098) internal successors, (670), 424 states have internal predecessors, (670), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:31,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 867 transitions. [2024-11-22 01:48:31,284 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 867 transitions. Word has length 90 [2024-11-22 01:48:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:31,285 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 867 transitions. [2024-11-22 01:48:31,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 867 transitions. [2024-11-22 01:48:31,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 01:48:31,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:31,288 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] [2024-11-22 01:48:31,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:48:31,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:31,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:31,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2060266495, now seen corresponding path program 1 times [2024-11-22 01:48:31,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527942550] [2024-11-22 01:48:31,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527942550] [2024-11-22 01:48:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527942550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:31,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362094359] [2024-11-22 01:48:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:31,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:31,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:31,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,407 INFO L87 Difference]: Start difference. First operand 531 states and 867 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:31,466 INFO L93 Difference]: Finished difference Result 1046 states and 1720 transitions. [2024-11-22 01:48:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:31,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2024-11-22 01:48:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:31,469 INFO L225 Difference]: With dead ends: 1046 [2024-11-22 01:48:31,470 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:31,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,473 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 13 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:31,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2551 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:31,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6397058823529411) internal successors, (669), 424 states have internal predecessors, (669), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:31,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 866 transitions. [2024-11-22 01:48:31,491 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 866 transitions. Word has length 91 [2024-11-22 01:48:31,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:31,491 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 866 transitions. [2024-11-22 01:48:31,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,492 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 866 transitions. [2024-11-22 01:48:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 01:48:31,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:31,494 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] [2024-11-22 01:48:31,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:48:31,494 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:31,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:31,495 INFO L85 PathProgramCache]: Analyzing trace with hash 740577825, now seen corresponding path program 1 times [2024-11-22 01:48:31,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:31,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361791233] [2024-11-22 01:48:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:31,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:31,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361791233] [2024-11-22 01:48:31,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361791233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:31,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:31,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:31,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357539750] [2024-11-22 01:48:31,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:31,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:31,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:31,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:31,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,586 INFO L87 Difference]: Start difference. First operand 531 states and 866 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:31,619 INFO L93 Difference]: Finished difference Result 1046 states and 1718 transitions. [2024-11-22 01:48:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:48:31,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-22 01:48:31,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:31,624 INFO L225 Difference]: With dead ends: 1046 [2024-11-22 01:48:31,624 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 01:48:31,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:31,628 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 12 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:31,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2553 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 01:48:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-22 01:48:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6372549019607843) internal successors, (668), 424 states have internal predecessors, (668), 100 states have call successors, (100), 24 states have call predecessors, (100), 22 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-22 01:48:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 865 transitions. [2024-11-22 01:48:31,645 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 865 transitions. Word has length 92 [2024-11-22 01:48:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:31,645 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 865 transitions. [2024-11-22 01:48:31,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:48:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 865 transitions. [2024-11-22 01:48:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 01:48:31,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:31,648 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] [2024-11-22 01:48:31,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:48:31,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:31,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:31,649 INFO L85 PathProgramCache]: Analyzing trace with hash 524731654, now seen corresponding path program 1 times [2024-11-22 01:48:31,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:31,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174625947] [2024-11-22 01:48:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:31,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:31,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:31,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174625947] [2024-11-22 01:48:31,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174625947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:31,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594228364] [2024-11-22 01:48:31,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:31,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:31,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:31,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:48:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:32,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:48:32,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:32,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:32,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594228364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:32,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:32,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:32,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106019959] [2024-11-22 01:48:32,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:32,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:32,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:32,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:32,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:32,223 INFO L87 Difference]: Start difference. First operand 531 states and 865 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:32,293 INFO L93 Difference]: Finished difference Result 1505 states and 2485 transitions. [2024-11-22 01:48:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:32,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2024-11-22 01:48:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:32,303 INFO L225 Difference]: With dead ends: 1505 [2024-11-22 01:48:32,304 INFO L226 Difference]: Without dead ends: 992 [2024-11-22 01:48:32,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:32,308 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 808 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:32,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1636 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-11-22 01:48:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 977. [2024-11-22 01:48:32,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 758 states have (on average 1.6517150395778364) internal successors, (1252), 789 states have internal predecessors, (1252), 176 states have call successors, (176), 43 states have call predecessors, (176), 42 states have return successors, (178), 170 states have call predecessors, (178), 173 states have call successors, (178) [2024-11-22 01:48:32,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1606 transitions. [2024-11-22 01:48:32,356 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1606 transitions. Word has length 93 [2024-11-22 01:48:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:32,357 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1606 transitions. [2024-11-22 01:48:32,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1606 transitions. [2024-11-22 01:48:32,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 01:48:32,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:32,362 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] [2024-11-22 01:48:32,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:48:32,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 01:48:32,567 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:32,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:32,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2071817116, now seen corresponding path program 1 times [2024-11-22 01:48:32,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:32,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701619760] [2024-11-22 01:48:32,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:32,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:32,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701619760] [2024-11-22 01:48:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701619760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452502258] [2024-11-22 01:48:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:32,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:32,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:32,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:48:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:33,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 1554 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:48:33,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:33,120 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:33,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452502258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:33,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:33,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:33,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122466198] [2024-11-22 01:48:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:33,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:33,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:33,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:33,122 INFO L87 Difference]: Start difference. First operand 977 states and 1606 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:33,182 INFO L93 Difference]: Finished difference Result 2397 states and 3969 transitions. [2024-11-22 01:48:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2024-11-22 01:48:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:33,191 INFO L225 Difference]: With dead ends: 2397 [2024-11-22 01:48:33,191 INFO L226 Difference]: Without dead ends: 1438 [2024-11-22 01:48:33,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:33,197 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 806 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:33,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1695 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-22 01:48:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1390. [2024-11-22 01:48:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1081 states have (on average 1.6651248843663276) internal successors, (1800), 1127 states have internal predecessors, (1800), 249 states have call successors, (249), 59 states have call predecessors, (249), 59 states have return successors, (256), 242 states have call predecessors, (256), 246 states have call successors, (256) [2024-11-22 01:48:33,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2305 transitions. [2024-11-22 01:48:33,297 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2305 transitions. Word has length 94 [2024-11-22 01:48:33,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:33,297 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2305 transitions. [2024-11-22 01:48:33,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:48:33,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2305 transitions. [2024-11-22 01:48:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:48:33,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:33,301 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] [2024-11-22 01:48:33,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:48:33,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 01:48:33,506 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:33,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:33,507 INFO L85 PathProgramCache]: Analyzing trace with hash -932247246, now seen corresponding path program 1 times [2024-11-22 01:48:33,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:33,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45521397] [2024-11-22 01:48:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:33,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:33,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:33,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:33,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45521397] [2024-11-22 01:48:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45521397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:33,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:33,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:33,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876572255] [2024-11-22 01:48:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:33,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:33,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:33,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:33,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:33,629 INFO L87 Difference]: Start difference. First operand 1390 states and 2305 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:34,096 INFO L93 Difference]: Finished difference Result 4106 states and 6934 transitions. [2024-11-22 01:48:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2024-11-22 01:48:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:34,113 INFO L225 Difference]: With dead ends: 4106 [2024-11-22 01:48:34,114 INFO L226 Difference]: Without dead ends: 2734 [2024-11-22 01:48:34,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:34,124 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 860 mSDsluCounter, 3494 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 4462 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:34,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 4462 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:48:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2024-11-22 01:48:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2687. [2024-11-22 01:48:34,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2095 states have (on average 1.6692124105011934) internal successors, (3497), 2183 states have internal predecessors, (3497), 477 states have call successors, (477), 112 states have call predecessors, (477), 114 states have return successors, (571), 469 states have call predecessors, (571), 473 states have call successors, (571) [2024-11-22 01:48:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 4545 transitions. [2024-11-22 01:48:34,287 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 4545 transitions. Word has length 96 [2024-11-22 01:48:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:34,287 INFO L471 AbstractCegarLoop]: Abstraction has 2687 states and 4545 transitions. [2024-11-22 01:48:34,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:34,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 4545 transitions. [2024-11-22 01:48:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:48:34,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:34,292 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] [2024-11-22 01:48:34,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:48:34,293 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:34,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1688077956, now seen corresponding path program 1 times [2024-11-22 01:48:34,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:34,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906078362] [2024-11-22 01:48:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:34,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906078362] [2024-11-22 01:48:34,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906078362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7147150] [2024-11-22 01:48:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:34,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:34,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:34,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:48:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:34,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:48:34,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:34,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:34,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7147150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:34,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:34,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:34,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131076140] [2024-11-22 01:48:34,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:34,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:34,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:34,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:34,749 INFO L87 Difference]: Start difference. First operand 2687 states and 4545 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 01:48:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:35,003 INFO L93 Difference]: Finished difference Result 7993 states and 13727 transitions. [2024-11-22 01:48:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-11-22 01:48:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:35,042 INFO L225 Difference]: With dead ends: 7993 [2024-11-22 01:48:35,043 INFO L226 Difference]: Without dead ends: 5325 [2024-11-22 01:48:35,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:35,060 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 848 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:35,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 2462 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5325 states. [2024-11-22 01:48:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5325 to 5258. [2024-11-22 01:48:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5258 states, 4114 states have (on average 1.674039863879436) internal successors, (6887), 4282 states have internal predecessors, (6887), 920 states have call successors, (920), 212 states have call predecessors, (920), 223 states have return successors, (1187), 919 states have call predecessors, (1187), 914 states have call successors, (1187) [2024-11-22 01:48:35,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5258 states to 5258 states and 8994 transitions. [2024-11-22 01:48:35,315 INFO L78 Accepts]: Start accepts. Automaton has 5258 states and 8994 transitions. Word has length 97 [2024-11-22 01:48:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:35,316 INFO L471 AbstractCegarLoop]: Abstraction has 5258 states and 8994 transitions. [2024-11-22 01:48:35,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 01:48:35,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5258 states and 8994 transitions. [2024-11-22 01:48:35,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:48:35,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:35,321 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] [2024-11-22 01:48:35,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:48:35,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:35,526 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:35,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:35,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1595772090, now seen corresponding path program 1 times [2024-11-22 01:48:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:35,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72997611] [2024-11-22 01:48:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:35,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:35,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72997611] [2024-11-22 01:48:35,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72997611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:35,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649344336] [2024-11-22 01:48:35,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:35,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:35,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:35,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:35,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:48:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:36,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:48:36,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:36,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:36,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649344336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:36,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-22 01:48:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014278855] [2024-11-22 01:48:36,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:36,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:48:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:36,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:48:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:36,203 INFO L87 Difference]: Start difference. First operand 5258 states and 8994 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:36,708 INFO L93 Difference]: Finished difference Result 15218 states and 26409 transitions. [2024-11-22 01:48:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:48:36,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2024-11-22 01:48:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:36,781 INFO L225 Difference]: With dead ends: 15218 [2024-11-22 01:48:36,781 INFO L226 Difference]: Without dead ends: 9979 [2024-11-22 01:48:36,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:48:36,825 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 716 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:36,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 1635 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9979 states. [2024-11-22 01:48:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9979 to 9942. [2024-11-22 01:48:37,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9942 states, 7762 states have (on average 1.6409430559134244) internal successors, (12737), 8090 states have internal predecessors, (12737), 1744 states have call successors, (1744), 418 states have call predecessors, (1744), 435 states have return successors, (2368), 1739 states have call predecessors, (2368), 1734 states have call successors, (2368) [2024-11-22 01:48:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9942 states to 9942 states and 16849 transitions. [2024-11-22 01:48:37,371 INFO L78 Accepts]: Start accepts. Automaton has 9942 states and 16849 transitions. Word has length 97 [2024-11-22 01:48:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:37,373 INFO L471 AbstractCegarLoop]: Abstraction has 9942 states and 16849 transitions. [2024-11-22 01:48:37,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 01:48:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9942 states and 16849 transitions. [2024-11-22 01:48:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 01:48:37,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:37,382 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] [2024-11-22 01:48:37,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 01:48:37,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 01:48:37,586 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:37,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2097475999, now seen corresponding path program 1 times [2024-11-22 01:48:37,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:37,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011816222] [2024-11-22 01:48:37,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:37,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:37,909 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 01:48:37,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:37,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011816222] [2024-11-22 01:48:37,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011816222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:48:37,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541948462] [2024-11-22 01:48:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:37,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:48:37,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:48:37,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:48:37,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:48:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:38,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:48:38,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:48:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:48:38,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:48:38,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541948462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:38,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:48:38,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2024-11-22 01:48:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002937871] [2024-11-22 01:48:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:38,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:48:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:48:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:38,245 INFO L87 Difference]: Start difference. First operand 9942 states and 16849 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 01:48:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:38,728 INFO L93 Difference]: Finished difference Result 18749 states and 31864 transitions. [2024-11-22 01:48:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:48:38,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2024-11-22 01:48:38,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:38,791 INFO L225 Difference]: With dead ends: 18749 [2024-11-22 01:48:38,791 INFO L226 Difference]: Without dead ends: 8825 [2024-11-22 01:48:38,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:48:38,836 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 727 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:38,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3342 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:48:38,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8825 states. [2024-11-22 01:48:39,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8825 to 8809. [2024-11-22 01:48:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8809 states, 6897 states have (on average 1.6283891547049443) internal successors, (11231), 7172 states have internal predecessors, (11231), 1518 states have call successors, (1518), 378 states have call predecessors, (1518), 393 states have return successors, (2038), 1514 states have call predecessors, (2038), 1508 states have call successors, (2038) [2024-11-22 01:48:39,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8809 states to 8809 states and 14787 transitions. [2024-11-22 01:48:39,244 INFO L78 Accepts]: Start accepts. Automaton has 8809 states and 14787 transitions. Word has length 102 [2024-11-22 01:48:39,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:39,245 INFO L471 AbstractCegarLoop]: Abstraction has 8809 states and 14787 transitions. [2024-11-22 01:48:39,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-22 01:48:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8809 states and 14787 transitions. [2024-11-22 01:48:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 01:48:39,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:39,248 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] [2024-11-22 01:48:39,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 01:48:39,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 01:48:39,453 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:39,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1471744497, now seen corresponding path program 1 times [2024-11-22 01:48:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:39,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337533590] [2024-11-22 01:48:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:48:39,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:39,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337533590] [2024-11-22 01:48:39,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337533590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:39,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:39,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769889000] [2024-11-22 01:48:39,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:39,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:39,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:39,528 INFO L87 Difference]: Start difference. First operand 8809 states and 14787 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 01:48:39,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:39,985 INFO L93 Difference]: Finished difference Result 17648 states and 29969 transitions. [2024-11-22 01:48:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:39,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2024-11-22 01:48:39,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:40,048 INFO L225 Difference]: With dead ends: 17648 [2024-11-22 01:48:40,048 INFO L226 Difference]: Without dead ends: 8857 [2024-11-22 01:48:40,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:40,104 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 12 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:40,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2519 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:40,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8857 states. [2024-11-22 01:48:40,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8857 to 8825. [2024-11-22 01:48:40,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8825 states, 6909 states have (on average 1.626718772615429) internal successors, (11239), 7184 states have internal predecessors, (11239), 1518 states have call successors, (1518), 386 states have call predecessors, (1518), 397 states have return successors, (2012), 1510 states have call predecessors, (2012), 1508 states have call successors, (2012) [2024-11-22 01:48:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8825 states to 8825 states and 14769 transitions. [2024-11-22 01:48:40,511 INFO L78 Accepts]: Start accepts. Automaton has 8825 states and 14769 transitions. Word has length 102 [2024-11-22 01:48:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:40,512 INFO L471 AbstractCegarLoop]: Abstraction has 8825 states and 14769 transitions. [2024-11-22 01:48:40,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 01:48:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8825 states and 14769 transitions. [2024-11-22 01:48:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 01:48:40,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:40,516 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] [2024-11-22 01:48:40,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:48:40,516 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:40,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:40,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1739423797, now seen corresponding path program 1 times [2024-11-22 01:48:40,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:40,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099178804] [2024-11-22 01:48:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:40,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 01:48:40,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:40,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099178804] [2024-11-22 01:48:40,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099178804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:40,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:40,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:40,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888480374] [2024-11-22 01:48:40,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:40,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:40,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:40,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:40,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:40,674 INFO L87 Difference]: Start difference. First operand 8825 states and 14769 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:48:41,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:41,717 INFO L93 Difference]: Finished difference Result 26421 states and 45473 transitions. [2024-11-22 01:48:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:41,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-22 01:48:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:41,823 INFO L225 Difference]: With dead ends: 26421 [2024-11-22 01:48:41,824 INFO L226 Difference]: Without dead ends: 17614 [2024-11-22 01:48:41,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:41,882 INFO L432 NwaCegarLoop]: 962 mSDtfsCounter, 854 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:41,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 4446 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:48:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17614 states. [2024-11-22 01:48:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17614 to 17513. [2024-11-22 01:48:42,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17513 states, 13724 states have (on average 1.6232876712328768) internal successors, (22278), 14265 states have internal predecessors, (22278), 2991 states have call successors, (2991), 766 states have call predecessors, (2991), 797 states have return successors, (4693), 2993 states have call predecessors, (4693), 2973 states have call successors, (4693) [2024-11-22 01:48:42,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17513 states to 17513 states and 29962 transitions. [2024-11-22 01:48:42,720 INFO L78 Accepts]: Start accepts. Automaton has 17513 states and 29962 transitions. Word has length 110 [2024-11-22 01:48:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:42,721 INFO L471 AbstractCegarLoop]: Abstraction has 17513 states and 29962 transitions. [2024-11-22 01:48:42,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-22 01:48:42,721 INFO L276 IsEmpty]: Start isEmpty. Operand 17513 states and 29962 transitions. [2024-11-22 01:48:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 01:48:42,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:42,726 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] [2024-11-22 01:48:42,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:48:42,726 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:42,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:42,727 INFO L85 PathProgramCache]: Analyzing trace with hash 383600225, now seen corresponding path program 1 times [2024-11-22 01:48:42,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:42,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383825072] [2024-11-22 01:48:42,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:42,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 01:48:42,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:42,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383825072] [2024-11-22 01:48:42,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383825072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:42,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:42,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:42,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164045954] [2024-11-22 01:48:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:42,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:42,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:42,823 INFO L87 Difference]: Start difference. First operand 17513 states and 29962 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:48:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:44,088 INFO L93 Difference]: Finished difference Result 35152 states and 61147 transitions. [2024-11-22 01:48:44,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:44,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-22 01:48:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:44,197 INFO L225 Difference]: With dead ends: 35152 [2024-11-22 01:48:44,197 INFO L226 Difference]: Without dead ends: 17657 [2024-11-22 01:48:44,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:44,302 INFO L432 NwaCegarLoop]: 845 mSDtfsCounter, 12 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:44,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2513 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:48:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17657 states. [2024-11-22 01:48:44,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17657 to 17593. [2024-11-22 01:48:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17593 states, 13796 states have (on average 1.620614670919107) internal successors, (22358), 14321 states have internal predecessors, (22358), 2991 states have call successors, (2991), 798 states have call predecessors, (2991), 805 states have return successors, (4653), 2985 states have call predecessors, (4653), 2973 states have call successors, (4653) [2024-11-22 01:48:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17593 states to 17593 states and 30002 transitions. [2024-11-22 01:48:45,143 INFO L78 Accepts]: Start accepts. Automaton has 17593 states and 30002 transitions. Word has length 111 [2024-11-22 01:48:45,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:45,143 INFO L471 AbstractCegarLoop]: Abstraction has 17593 states and 30002 transitions. [2024-11-22 01:48:45,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-22 01:48:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 17593 states and 30002 transitions. [2024-11-22 01:48:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:48:45,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:45,148 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:45,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:48:45,149 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:45,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1809203665, now seen corresponding path program 1 times [2024-11-22 01:48:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:45,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486534828] [2024-11-22 01:48:45,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:45,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 01:48:45,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486534828] [2024-11-22 01:48:45,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486534828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:45,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:45,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476905618] [2024-11-22 01:48:45,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:45,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:45,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:45,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:45,282 INFO L87 Difference]: Start difference. First operand 17593 states and 30002 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:48:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:47,221 INFO L93 Difference]: Finished difference Result 52865 states and 93841 transitions. [2024-11-22 01:48:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:47,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-22 01:48:47,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:47,581 INFO L225 Difference]: With dead ends: 52865 [2024-11-22 01:48:47,581 INFO L226 Difference]: Without dead ends: 35290 [2024-11-22 01:48:47,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:48:47,676 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 850 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:47,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 4446 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 01:48:47,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35290 states. [2024-11-22 01:48:48,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35290 to 35125. [2024-11-22 01:48:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35125 states, 27555 states have (on average 1.6170930865541644) internal successors, (44559), 28596 states have internal predecessors, (44559), 5948 states have call successors, (5948), 1590 states have call predecessors, (5948), 1621 states have return successors, (11350), 5962 states have call predecessors, (11350), 5914 states have call successors, (11350) [2024-11-22 01:48:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35125 states to 35125 states and 61857 transitions. [2024-11-22 01:48:49,679 INFO L78 Accepts]: Start accepts. Automaton has 35125 states and 61857 transitions. Word has length 120 [2024-11-22 01:48:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:49,682 INFO L471 AbstractCegarLoop]: Abstraction has 35125 states and 61857 transitions. [2024-11-22 01:48:49,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 01:48:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 35125 states and 61857 transitions. [2024-11-22 01:48:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 01:48:49,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:49,686 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:49,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:48:49,686 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:49,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1931648771, now seen corresponding path program 1 times [2024-11-22 01:48:49,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:49,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126676796] [2024-11-22 01:48:49,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:49,759 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-22 01:48:49,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:49,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126676796] [2024-11-22 01:48:49,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126676796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:49,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:49,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:48:49,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971534733] [2024-11-22 01:48:49,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:49,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:48:49,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:49,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:48:49,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:48:49,762 INFO L87 Difference]: Start difference. First operand 35125 states and 61857 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:48:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:52,180 INFO L93 Difference]: Finished difference Result 70520 states and 127513 transitions. [2024-11-22 01:48:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:48:52,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-11-22 01:48:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:52,455 INFO L225 Difference]: With dead ends: 70520 [2024-11-22 01:48:52,456 INFO L226 Difference]: Without dead ends: 35413 [2024-11-22 01:48:52,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:48:52,780 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 11 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:48:52,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2516 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:48:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35413 states. [2024-11-22 01:48:53,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35413 to 35285. [2024-11-22 01:48:53,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35285 states, 27699 states have (on average 1.6144626159789162) internal successors, (44719), 28740 states have internal predecessors, (44719), 5948 states have call successors, (5948), 1622 states have call predecessors, (5948), 1637 states have return successors, (11294), 5946 states have call predecessors, (11294), 5914 states have call successors, (11294) [2024-11-22 01:48:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35285 states to 35285 states and 61961 transitions. [2024-11-22 01:48:54,687 INFO L78 Accepts]: Start accepts. Automaton has 35285 states and 61961 transitions. Word has length 121 [2024-11-22 01:48:54,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:48:54,688 INFO L471 AbstractCegarLoop]: Abstraction has 35285 states and 61961 transitions. [2024-11-22 01:48:54,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-22 01:48:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 35285 states and 61961 transitions. [2024-11-22 01:48:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 01:48:54,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:48:54,694 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:48:54,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:48:54,694 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:48:54,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:48:54,695 INFO L85 PathProgramCache]: Analyzing trace with hash -41469037, now seen corresponding path program 1 times [2024-11-22 01:48:54,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:48:54,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508178582] [2024-11-22 01:48:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:48:54,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:48:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:48:54,850 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:48:54,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:48:54,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508178582] [2024-11-22 01:48:54,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508178582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:48:54,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:48:54,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:48:54,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804367432] [2024-11-22 01:48:54,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:48:54,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:48:54,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:48:54,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:48:54,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:48:54,853 INFO L87 Difference]: Start difference. First operand 35285 states and 61961 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 01:48:58,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:48:58,974 INFO L93 Difference]: Finished difference Result 106177 states and 198411 transitions. [2024-11-22 01:48:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:48:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2024-11-22 01:48:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:48:59,623 INFO L225 Difference]: With dead ends: 106177 [2024-11-22 01:48:59,624 INFO L226 Difference]: Without dead ends: 70910 [2024-11-22 01:49:00,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:49:00,205 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 845 mSDsluCounter, 3487 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 4445 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:00,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 4445 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:49:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70910 states. [2024-11-22 01:49:02,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70910 to 70617. [2024-11-22 01:49:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70617 states, 55442 states have (on average 1.6117744670105696) internal successors, (89360), 57515 states have internal predecessors, (89360), 11873 states have call successors, (11873), 3238 states have call predecessors, (11873), 3301 states have return successors, (29255), 11911 states have call predecessors, (29255), 11807 states have call successors, (29255) [2024-11-22 01:49:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70617 states to 70617 states and 130488 transitions. [2024-11-22 01:49:04,340 INFO L78 Accepts]: Start accepts. Automaton has 70617 states and 130488 transitions. Word has length 131 [2024-11-22 01:49:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:04,341 INFO L471 AbstractCegarLoop]: Abstraction has 70617 states and 130488 transitions. [2024-11-22 01:49:04,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-22 01:49:04,344 INFO L276 IsEmpty]: Start isEmpty. Operand 70617 states and 130488 transitions. [2024-11-22 01:49:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:49:04,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:04,354 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:04,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:49:04,355 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:04,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:04,358 INFO L85 PathProgramCache]: Analyzing trace with hash 643582003, now seen corresponding path program 1 times [2024-11-22 01:49:04,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:04,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735386227] [2024-11-22 01:49:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:04,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 01:49:04,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:04,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735386227] [2024-11-22 01:49:04,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735386227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:04,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:04,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:04,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556988673] [2024-11-22 01:49:04,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:04,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:04,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:04,491 INFO L87 Difference]: Start difference. First operand 70617 states and 130488 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:49:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:10,332 INFO L93 Difference]: Finished difference Result 141856 states and 273663 transitions. [2024-11-22 01:49:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:49:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 132 [2024-11-22 01:49:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:11,360 INFO L225 Difference]: With dead ends: 141856 [2024-11-22 01:49:11,361 INFO L226 Difference]: Without dead ends: 71257 [2024-11-22 01:49:12,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:49:12,562 INFO L432 NwaCegarLoop]: 845 mSDtfsCounter, 9 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:12,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2513 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:49:12,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71257 states. [2024-11-22 01:49:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71257 to 71001. [2024-11-22 01:49:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71001 states, 55794 states have (on average 1.6084883679248665) internal successors, (89744), 57867 states have internal predecessors, (89744), 11873 states have call successors, (11873), 3302 states have call predecessors, (11873), 3333 states have return successors, (29191), 11879 states have call predecessors, (29191), 11807 states have call successors, (29191) [2024-11-22 01:49:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71001 states to 71001 states and 130808 transitions. [2024-11-22 01:49:17,040 INFO L78 Accepts]: Start accepts. Automaton has 71001 states and 130808 transitions. Word has length 132 [2024-11-22 01:49:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:17,043 INFO L471 AbstractCegarLoop]: Abstraction has 71001 states and 130808 transitions. [2024-11-22 01:49:17,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:49:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 71001 states and 130808 transitions. [2024-11-22 01:49:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-22 01:49:17,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:17,054 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:17,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:49:17,054 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:17,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1820811711, now seen corresponding path program 1 times [2024-11-22 01:49:17,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:17,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213636969] [2024-11-22 01:49:17,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:17,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 01:49:17,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213636969] [2024-11-22 01:49:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213636969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:17,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:17,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:49:17,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197661018] [2024-11-22 01:49:17,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:17,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:49:17,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:17,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:49:17,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:49:17,228 INFO L87 Difference]: Start difference. First operand 71001 states and 130808 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-22 01:49:22,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:22,153 INFO L93 Difference]: Finished difference Result 144763 states and 269283 transitions. [2024-11-22 01:49:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:49:22,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 143 [2024-11-22 01:49:22,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:23,175 INFO L225 Difference]: With dead ends: 144763 [2024-11-22 01:49:23,176 INFO L226 Difference]: Without dead ends: 73732 [2024-11-22 01:49:23,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:23,897 INFO L432 NwaCegarLoop]: 914 mSDtfsCounter, 713 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:23,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 3511 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:49:23,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73732 states.