./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product21.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_spec2_product21.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 b02d53de4cc8dbaebc187e8fa236234211af4eca5416c7869304d04f0d61a0bd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:46:12,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:46:12,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:46:12,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:46:12,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:46:12,900 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:46:12,901 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:46:12,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:46:12,903 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:46:12,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:46:12,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:46:12,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:46:12,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:46:12,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:46:12,905 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:46:12,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:46:12,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:46:12,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:46:12,907 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:46:12,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:46:12,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:46:12,912 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:46:12,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:46:12,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:46:12,912 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:46:12,913 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:46:12,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:46:12,914 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:46:12,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:46:12,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:46:12,915 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:46:12,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:46:12,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:46:12,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:46:12,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:46:12,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:46:12,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:46:12,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:46:12,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:46:12,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:46:12,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:46:12,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:46:12,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b02d53de4cc8dbaebc187e8fa236234211af4eca5416c7869304d04f0d61a0bd [2024-11-22 01:46:13,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:46:13,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:46:13,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:46:13,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:46:13,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:46:13,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c [2024-11-22 01:46:14,693 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:46:14,998 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:46:14,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c [2024-11-22 01:46:15,032 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d500b1a2b/e0031d2ce8884d13ada220ed02a8a4e4/FLAG246fa0fb8 [2024-11-22 01:46:15,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d500b1a2b/e0031d2ce8884d13ada220ed02a8a4e4 [2024-11-22 01:46:15,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:46:15,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:46:15,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:46:15,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:46:15,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:46:15,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104731d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15, skipping insertion in model container [2024-11-22 01:46:15,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:46:15,632 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c[40071,40084] [2024-11-22 01:46:15,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:46:15,733 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:46:15,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-22 01:46:15,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2024-11-22 01:46:15,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [452] [2024-11-22 01:46:15,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1120] [2024-11-22 01:46:15,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1220] [2024-11-22 01:46:15,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1574] [2024-11-22 01:46:15,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1586] [2024-11-22 01:46:15,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [1706] [2024-11-22 01:46:15,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1890] [2024-11-22 01:46:15,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1899] [2024-11-22 01:46:15,814 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product21.cil.c[40071,40084] [2024-11-22 01:46:15,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:46:15,893 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:46:15,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15 WrapperNode [2024-11-22 01:46:15,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:46:15,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:46:15,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:46:15,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:46:15,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,969 INFO L138 Inliner]: procedures = 92, calls = 339, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 860 [2024-11-22 01:46:15,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:46:15,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:46:15,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:46:15,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:46:15,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:15,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,023 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 01:46:16,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:46:16,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:46:16,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:46:16,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:46:16,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (1/1) ... [2024-11-22 01:46:16,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:46:16,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:16,152 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 01:46:16,159 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 01:46:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:46:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:46:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:46:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:46:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:46:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:46:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:46:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:46:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:46:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:46:16,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:46:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:46:16,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:46:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:46:16,226 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:46:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-22 01:46:16,227 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-22 01:46:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:46:16,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:46:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:46:16,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:46:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:46:16,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:46:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:46:16,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:46:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:46:16,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:46:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:46:16,229 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:46:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:46:16,229 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:46:16,230 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:46:16,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:46:16,230 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:46:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:46:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:46:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:46:16,233 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:46:16,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:46:16,233 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:46:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:46:16,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:46:16,234 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:46:16,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:46:16,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:46:16,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:46:16,235 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:46:16,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:46:16,436 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:46:16,440 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:46:17,788 INFO L? ?]: Removed 448 outVars from TransFormulas that were not future-live. [2024-11-22 01:46:17,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:46:17,827 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:46:17,827 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:46:17,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:17 BoogieIcfgContainer [2024-11-22 01:46:17,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:46:17,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:46:17,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:46:17,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:46:17,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:46:15" (1/3) ... [2024-11-22 01:46:17,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d890f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:17, skipping insertion in model container [2024-11-22 01:46:17,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:15" (2/3) ... [2024-11-22 01:46:17,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d890f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:17, skipping insertion in model container [2024-11-22 01:46:17,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:17" (3/3) ... [2024-11-22 01:46:17,838 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product21.cil.c [2024-11-22 01:46:17,855 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:46:17,856 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:46:17,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:46:17,966 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;@52bb5441, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:46:17,966 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:46:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 563 states, 442 states have (on average 1.6945701357466063) internal successors, (749), 463 states have internal predecessors, (749), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-22 01:46:17,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-22 01:46:17,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:18,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:18,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:18,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:18,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1455804326, now seen corresponding path program 1 times [2024-11-22 01:46:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:18,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882918816] [2024-11-22 01:46:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:18,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:18,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882918816] [2024-11-22 01:46:18,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882918816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:18,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:18,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966339430] [2024-11-22 01:46:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:18,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:18,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:18,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:18,788 INFO L87 Difference]: Start difference. First operand has 563 states, 442 states have (on average 1.6945701357466063) internal successors, (749), 463 states have internal predecessors, (749), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:18,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:18,980 INFO L93 Difference]: Finished difference Result 1106 states and 1853 transitions. [2024-11-22 01:46:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:18,983 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-11-22 01:46:18,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:19,009 INFO L225 Difference]: With dead ends: 1106 [2024-11-22 01:46:19,011 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:19,025 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 01:46:19,029 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 5 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:19,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2750 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:19,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:19,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.6903669724770642) internal successors, (737), 455 states have internal predecessors, (737), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:19,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 922 transitions. [2024-11-22 01:46:19,144 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 922 transitions. Word has length 88 [2024-11-22 01:46:19,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:19,145 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 922 transitions. [2024-11-22 01:46:19,145 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 922 transitions. [2024-11-22 01:46:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 01:46:19,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:19,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:19,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:46:19,155 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:19,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1276591595, now seen corresponding path program 1 times [2024-11-22 01:46:19,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:19,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561178421] [2024-11-22 01:46:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:19,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:19,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561178421] [2024-11-22 01:46:19,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561178421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:19,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:19,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:19,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231188264] [2024-11-22 01:46:19,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:19,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:19,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:19,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:19,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:19,365 INFO L87 Difference]: Start difference. First operand 555 states and 922 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:19,457 INFO L93 Difference]: Finished difference Result 1092 states and 1821 transitions. [2024-11-22 01:46:19,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:19,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2024-11-22 01:46:19,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:19,469 INFO L225 Difference]: With dead ends: 1092 [2024-11-22 01:46:19,469 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:19,476 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 01:46:19,477 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 4 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:19,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2729 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:19,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.688073394495413) internal successors, (736), 455 states have internal predecessors, (736), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 921 transitions. [2024-11-22 01:46:19,580 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 921 transitions. Word has length 91 [2024-11-22 01:46:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:19,581 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 921 transitions. [2024-11-22 01:46:19,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 921 transitions. [2024-11-22 01:46:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 01:46:19,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:19,587 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:19,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:46:19,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:19,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash -56883850, now seen corresponding path program 1 times [2024-11-22 01:46:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:19,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846369125] [2024-11-22 01:46:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:19,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:19,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846369125] [2024-11-22 01:46:19,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846369125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:19,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:19,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:19,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320085884] [2024-11-22 01:46:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:19,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:19,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:19,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:19,784 INFO L87 Difference]: Start difference. First operand 555 states and 921 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:19,852 INFO L93 Difference]: Finished difference Result 1092 states and 1820 transitions. [2024-11-22 01:46:19,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:19,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-22 01:46:19,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:19,861 INFO L225 Difference]: With dead ends: 1092 [2024-11-22 01:46:19,861 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:19,866 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 01:46:19,868 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 3 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2729 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 01:46:19,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2729 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:19,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:19,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:19,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.6857798165137614) internal successors, (735), 455 states have internal predecessors, (735), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 920 transitions. [2024-11-22 01:46:19,904 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 920 transitions. Word has length 92 [2024-11-22 01:46:19,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:19,906 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 920 transitions. [2024-11-22 01:46:19,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 920 transitions. [2024-11-22 01:46:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 01:46:19,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:19,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:19,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:46:19,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:19,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:19,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1061849657, now seen corresponding path program 1 times [2024-11-22 01:46:19,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:19,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132422634] [2024-11-22 01:46:19,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:19,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:20,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:20,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132422634] [2024-11-22 01:46:20,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132422634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611592271] [2024-11-22 01:46:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:20,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:20,095 INFO L87 Difference]: Start difference. First operand 555 states and 920 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:20,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:20,157 INFO L93 Difference]: Finished difference Result 1092 states and 1819 transitions. [2024-11-22 01:46:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:20,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2024-11-22 01:46:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:20,164 INFO L225 Difference]: With dead ends: 1092 [2024-11-22 01:46:20,164 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:20,168 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 01:46:20,171 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 2 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:20,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2729 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:20,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.68348623853211) internal successors, (734), 455 states have internal predecessors, (734), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:20,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 919 transitions. [2024-11-22 01:46:20,196 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 919 transitions. Word has length 93 [2024-11-22 01:46:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:20,199 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 919 transitions. [2024-11-22 01:46:20,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:20,199 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 919 transitions. [2024-11-22 01:46:20,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-22 01:46:20,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:20,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:20,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:46:20,205 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:20,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:20,206 INFO L85 PathProgramCache]: Analyzing trace with hash -472951278, now seen corresponding path program 1 times [2024-11-22 01:46:20,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:20,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824377572] [2024-11-22 01:46:20,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:20,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:20,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:20,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:20,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824377572] [2024-11-22 01:46:20,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824377572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:20,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:20,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:20,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427413831] [2024-11-22 01:46:20,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:20,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:20,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:20,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:20,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:20,350 INFO L87 Difference]: Start difference. First operand 555 states and 919 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:20,397 INFO L93 Difference]: Finished difference Result 1092 states and 1818 transitions. [2024-11-22 01:46:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2024-11-22 01:46:20,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:20,404 INFO L225 Difference]: With dead ends: 1092 [2024-11-22 01:46:20,404 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:20,407 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 01:46:20,408 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 1 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:20,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2729 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:20,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 436 states have (on average 1.6811926605504588) internal successors, (733), 455 states have internal predecessors, (733), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 918 transitions. [2024-11-22 01:46:20,432 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 918 transitions. Word has length 94 [2024-11-22 01:46:20,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:20,433 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 918 transitions. [2024-11-22 01:46:20,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 918 transitions. [2024-11-22 01:46:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 01:46:20,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:20,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:20,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:46:20,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:20,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2013870685, now seen corresponding path program 1 times [2024-11-22 01:46:20,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:20,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917452780] [2024-11-22 01:46:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:20,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:20,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:20,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917452780] [2024-11-22 01:46:20,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917452780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:20,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:20,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:46:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372478690] [2024-11-22 01:46:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:20,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:46:20,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:46:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:20,709 INFO L87 Difference]: Start difference. First operand 555 states and 918 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:46:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:20,825 INFO L93 Difference]: Finished difference Result 1058 states and 1750 transitions. [2024-11-22 01:46:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:20,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-11-22 01:46:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:20,832 INFO L225 Difference]: With dead ends: 1058 [2024-11-22 01:46:20,832 INFO L226 Difference]: Without dead ends: 570 [2024-11-22 01:46:20,835 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 01:46:20,837 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 91 mSDsluCounter, 4459 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5367 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:20,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5367 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-22 01:46:20,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2024-11-22 01:46:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.6771300448430493) internal successors, (748), 467 states have internal predecessors, (748), 96 states have call successors, (96), 24 states have call predecessors, (96), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2024-11-22 01:46:20,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 937 transitions. [2024-11-22 01:46:20,870 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 937 transitions. Word has length 95 [2024-11-22 01:46:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:20,871 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 937 transitions. [2024-11-22 01:46:20,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:46:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 937 transitions. [2024-11-22 01:46:20,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-22 01:46:20,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:20,878 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:20,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:46:20,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:20,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1594353854, now seen corresponding path program 1 times [2024-11-22 01:46:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:20,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658936253] [2024-11-22 01:46:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:20,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:21,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:21,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658936253] [2024-11-22 01:46:21,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658936253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:21,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:21,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:21,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706561171] [2024-11-22 01:46:21,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:21,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:21,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:21,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:21,028 INFO L87 Difference]: Start difference. First operand 568 states and 937 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:21,067 INFO L93 Difference]: Finished difference Result 1110 states and 1844 transitions. [2024-11-22 01:46:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:21,068 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2024-11-22 01:46:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:21,072 INFO L225 Difference]: With dead ends: 1110 [2024-11-22 01:46:21,072 INFO L226 Difference]: Without dead ends: 549 [2024-11-22 01:46:21,075 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 01:46:21,076 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 0 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:21,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2731 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-22 01:46:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-22 01:46:21,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 430 states have (on average 1.672093023255814) internal successors, (719), 449 states have internal predecessors, (719), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:21,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 904 transitions. [2024-11-22 01:46:21,098 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 904 transitions. Word has length 95 [2024-11-22 01:46:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:21,100 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 904 transitions. [2024-11-22 01:46:21,100 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 904 transitions. [2024-11-22 01:46:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-22 01:46:21,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:21,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:21,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:46:21,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:21,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:21,104 INFO L85 PathProgramCache]: Analyzing trace with hash -921091645, now seen corresponding path program 1 times [2024-11-22 01:46:21,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:21,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810393789] [2024-11-22 01:46:21,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:21,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:21,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:21,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810393789] [2024-11-22 01:46:21,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810393789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:21,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719144203] [2024-11-22 01:46:21,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:21,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:21,295 INFO L87 Difference]: Start difference. First operand 549 states and 904 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:21,538 INFO L93 Difference]: Finished difference Result 1055 states and 1742 transitions. [2024-11-22 01:46:21,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:21,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2024-11-22 01:46:21,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:21,546 INFO L225 Difference]: With dead ends: 1055 [2024-11-22 01:46:21,547 INFO L226 Difference]: Without dead ends: 558 [2024-11-22 01:46:21,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:21,551 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 55 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:21,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4276 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:46:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-22 01:46:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 549. [2024-11-22 01:46:21,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 430 states have (on average 1.6627906976744187) internal successors, (715), 449 states have internal predecessors, (715), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 900 transitions. [2024-11-22 01:46:21,576 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 900 transitions. Word has length 96 [2024-11-22 01:46:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:21,576 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 900 transitions. [2024-11-22 01:46:21,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,576 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 900 transitions. [2024-11-22 01:46:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 01:46:21,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:21,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:21,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:46:21,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:21,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1400103994, now seen corresponding path program 1 times [2024-11-22 01:46:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339974807] [2024-11-22 01:46:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:21,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:21,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339974807] [2024-11-22 01:46:21,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339974807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:21,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:21,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:21,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766492239] [2024-11-22 01:46:21,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:21,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:21,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:21,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:21,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:21,757 INFO L87 Difference]: Start difference. First operand 549 states and 900 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:21,948 INFO L93 Difference]: Finished difference Result 1055 states and 1738 transitions. [2024-11-22 01:46:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-11-22 01:46:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:21,953 INFO L225 Difference]: With dead ends: 1055 [2024-11-22 01:46:21,954 INFO L226 Difference]: Without dead ends: 558 [2024-11-22 01:46:21,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:21,958 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 54 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:21,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4276 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-22 01:46:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 549. [2024-11-22 01:46:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 430 states have (on average 1.6534883720930234) internal successors, (711), 449 states have internal predecessors, (711), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 896 transitions. [2024-11-22 01:46:21,978 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 896 transitions. Word has length 97 [2024-11-22 01:46:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:21,978 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 896 transitions. [2024-11-22 01:46:21,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 896 transitions. [2024-11-22 01:46:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:46:21,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:21,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:21,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:46:21,983 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:21,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:21,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1487994264, now seen corresponding path program 1 times [2024-11-22 01:46:21,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:21,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140246157] [2024-11-22 01:46:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:21,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:22,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:22,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140246157] [2024-11-22 01:46:22,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140246157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:22,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:22,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:22,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788575582] [2024-11-22 01:46:22,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:22,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:22,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:22,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:22,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:22,142 INFO L87 Difference]: Start difference. First operand 549 states and 896 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:22,333 INFO L93 Difference]: Finished difference Result 1055 states and 1734 transitions. [2024-11-22 01:46:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-11-22 01:46:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:22,339 INFO L225 Difference]: With dead ends: 1055 [2024-11-22 01:46:22,339 INFO L226 Difference]: Without dead ends: 558 [2024-11-22 01:46:22,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:22,344 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 53 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4258 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:22,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4258 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-22 01:46:22,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 549. [2024-11-22 01:46:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 430 states have (on average 1.6441860465116278) internal successors, (707), 449 states have internal predecessors, (707), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 892 transitions. [2024-11-22 01:46:22,365 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 892 transitions. Word has length 98 [2024-11-22 01:46:22,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:22,366 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 892 transitions. [2024-11-22 01:46:22,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:22,366 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 892 transitions. [2024-11-22 01:46:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 01:46:22,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:22,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:22,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:46:22,370 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:22,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:22,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1033134360, now seen corresponding path program 1 times [2024-11-22 01:46:22,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:22,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956670649] [2024-11-22 01:46:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:22,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:22,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:22,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956670649] [2024-11-22 01:46:22,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956670649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:22,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:22,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:46:22,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537389101] [2024-11-22 01:46:22,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:22,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:46:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:22,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:46:22,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:22,564 INFO L87 Difference]: Start difference. First operand 549 states and 892 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:46:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:22,632 INFO L93 Difference]: Finished difference Result 1046 states and 1716 transitions. [2024-11-22 01:46:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-22 01:46:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:22,637 INFO L225 Difference]: With dead ends: 1046 [2024-11-22 01:46:22,638 INFO L226 Difference]: Without dead ends: 528 [2024-11-22 01:46:22,640 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 01:46:22,641 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 84 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:22,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5213 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:22,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-22 01:46:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-22 01:46:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 409 states have (on average 1.645476772616137) internal successors, (673), 428 states have internal predecessors, (673), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 858 transitions. [2024-11-22 01:46:22,659 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 858 transitions. Word has length 98 [2024-11-22 01:46:22,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:22,660 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 858 transitions. [2024-11-22 01:46:22,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-22 01:46:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 858 transitions. [2024-11-22 01:46:22,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-22 01:46:22,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:22,663 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:22,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:46:22,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:22,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:22,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1958965323, now seen corresponding path program 1 times [2024-11-22 01:46:22,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:22,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343646851] [2024-11-22 01:46:22,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:22,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:22,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:22,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343646851] [2024-11-22 01:46:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343646851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675253371] [2024-11-22 01:46:22,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:22,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:22,838 INFO L87 Difference]: Start difference. First operand 528 states and 858 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:22,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:22,910 INFO L93 Difference]: Finished difference Result 1025 states and 1682 transitions. [2024-11-22 01:46:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:22,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-11-22 01:46:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:22,937 INFO L225 Difference]: With dead ends: 1025 [2024-11-22 01:46:22,937 INFO L226 Difference]: Without dead ends: 528 [2024-11-22 01:46:22,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:22,940 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 17 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4196 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:22,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4196 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-22 01:46:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-22 01:46:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 409 states have (on average 1.6430317848410758) internal successors, (672), 428 states have internal predecessors, (672), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:22,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 857 transitions. [2024-11-22 01:46:22,958 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 857 transitions. Word has length 99 [2024-11-22 01:46:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:22,958 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 857 transitions. [2024-11-22 01:46:22,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 857 transitions. [2024-11-22 01:46:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-22 01:46:22,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:22,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:22,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:46:22,963 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:22,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:22,964 INFO L85 PathProgramCache]: Analyzing trace with hash -977846515, now seen corresponding path program 1 times [2024-11-22 01:46:22,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:22,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407458501] [2024-11-22 01:46:22,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:22,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:23,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:23,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407458501] [2024-11-22 01:46:23,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407458501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:23,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:23,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:23,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278954618] [2024-11-22 01:46:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:23,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:23,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:23,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:23,112 INFO L87 Difference]: Start difference. First operand 528 states and 857 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:23,180 INFO L93 Difference]: Finished difference Result 1025 states and 1681 transitions. [2024-11-22 01:46:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-22 01:46:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:23,186 INFO L225 Difference]: With dead ends: 1025 [2024-11-22 01:46:23,186 INFO L226 Difference]: Without dead ends: 528 [2024-11-22 01:46:23,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:23,189 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 16 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4196 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:23,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4196 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:23,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-22 01:46:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-22 01:46:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 409 states have (on average 1.6405867970660146) internal successors, (671), 428 states have internal predecessors, (671), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 856 transitions. [2024-11-22 01:46:23,208 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 856 transitions. Word has length 100 [2024-11-22 01:46:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:23,208 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 856 transitions. [2024-11-22 01:46:23,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 856 transitions. [2024-11-22 01:46:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 01:46:23,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:23,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:23,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:46:23,212 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:23,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 51890384, now seen corresponding path program 1 times [2024-11-22 01:46:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:23,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650135023] [2024-11-22 01:46:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650135023] [2024-11-22 01:46:23,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650135023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:23,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:23,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:23,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131110945] [2024-11-22 01:46:23,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:23,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:23,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:23,322 INFO L87 Difference]: Start difference. First operand 528 states and 856 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:23,364 INFO L93 Difference]: Finished difference Result 1019 states and 1669 transitions. [2024-11-22 01:46:23,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:23,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-22 01:46:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:23,369 INFO L225 Difference]: With dead ends: 1019 [2024-11-22 01:46:23,369 INFO L226 Difference]: Without dead ends: 528 [2024-11-22 01:46:23,372 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 01:46:23,373 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 5 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:23,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2522 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:23,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-22 01:46:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-22 01:46:23,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 409 states have (on average 1.6381418092909537) internal successors, (670), 428 states have internal predecessors, (670), 95 states have call successors, (95), 24 states have call predecessors, (95), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-22 01:46:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 855 transitions. [2024-11-22 01:46:23,390 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 855 transitions. Word has length 101 [2024-11-22 01:46:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:23,390 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 855 transitions. [2024-11-22 01:46:23,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-22 01:46:23,391 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 855 transitions. [2024-11-22 01:46:23,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-22 01:46:23,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:23,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:23,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:46:23,395 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:23,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1288586370, now seen corresponding path program 1 times [2024-11-22 01:46:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595858166] [2024-11-22 01:46:23,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:23,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595858166] [2024-11-22 01:46:23,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595858166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:23,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:23,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:46:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586295602] [2024-11-22 01:46:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:23,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:46:23,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:46:23,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:46:23,730 INFO L87 Difference]: Start difference. First operand 528 states and 855 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 01:46:25,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:25,530 INFO L93 Difference]: Finished difference Result 1015 states and 1681 transitions. [2024-11-22 01:46:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:46:25,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-22 01:46:25,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:25,537 INFO L225 Difference]: With dead ends: 1015 [2024-11-22 01:46:25,537 INFO L226 Difference]: Without dead ends: 532 [2024-11-22 01:46:25,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:46:25,542 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1305 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:25,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 1573 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 01:46:25,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-22 01:46:25,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2024-11-22 01:46:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 412 states have (on average 1.633495145631068) internal successors, (673), 431 states have internal predecessors, (673), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (106), 89 states have call predecessors, (106), 90 states have call successors, (106) [2024-11-22 01:46:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 874 transitions. [2024-11-22 01:46:25,572 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 874 transitions. Word has length 102 [2024-11-22 01:46:25,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:25,573 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 874 transitions. [2024-11-22 01:46:25,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 01:46:25,573 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 874 transitions. [2024-11-22 01:46:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-22 01:46:25,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:25,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:25,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:46:25,611 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:25,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1080771376, now seen corresponding path program 1 times [2024-11-22 01:46:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:25,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757271390] [2024-11-22 01:46:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:25,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757271390] [2024-11-22 01:46:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757271390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:46:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778536686] [2024-11-22 01:46:25,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:25,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:46:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:25,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:46:25,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:25,810 INFO L87 Difference]: Start difference. First operand 532 states and 874 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 01:46:29,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:29,596 INFO L93 Difference]: Finished difference Result 1911 states and 3248 transitions. [2024-11-22 01:46:29,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 01:46:29,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 103 [2024-11-22 01:46:29,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:29,609 INFO L225 Difference]: With dead ends: 1911 [2024-11-22 01:46:29,610 INFO L226 Difference]: Without dead ends: 1424 [2024-11-22 01:46:29,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-22 01:46:29,614 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 2386 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 4932 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 2535 SdHoareTripleChecker+Invalid, 5546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 4932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:29,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2464 Valid, 2535 Invalid, 5546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 4932 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-22 01:46:29,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2024-11-22 01:46:29,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1366. [2024-11-22 01:46:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1053 states have (on average 1.6448243114909782) internal successors, (1732), 1101 states have internal predecessors, (1732), 249 states have call successors, (249), 63 states have call predecessors, (249), 63 states have return successors, (270), 238 states have call predecessors, (270), 244 states have call successors, (270) [2024-11-22 01:46:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 2251 transitions. [2024-11-22 01:46:29,705 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 2251 transitions. Word has length 103 [2024-11-22 01:46:29,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:29,706 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 2251 transitions. [2024-11-22 01:46:29,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-22 01:46:29,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 2251 transitions. [2024-11-22 01:46:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-22 01:46:29,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:29,710 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:29,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:46:29,710 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:29,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash -105981864, now seen corresponding path program 1 times [2024-11-22 01:46:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:29,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378939028] [2024-11-22 01:46:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:29,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:29,880 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 01:46:29,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:29,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378939028] [2024-11-22 01:46:29,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378939028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:29,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448894218] [2024-11-22 01:46:29,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:29,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:29,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:29,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:29,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:29,883 INFO L87 Difference]: Start difference. First operand 1366 states and 2251 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:32,608 INFO L93 Difference]: Finished difference Result 4692 states and 7917 transitions. [2024-11-22 01:46:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 105 [2024-11-22 01:46:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:32,638 INFO L225 Difference]: With dead ends: 4692 [2024-11-22 01:46:32,638 INFO L226 Difference]: Without dead ends: 3372 [2024-11-22 01:46:32,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:32,649 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 3242 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 3288 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3284 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 4125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 3288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:32,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3284 Valid, 1822 Invalid, 4125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 3288 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-22 01:46:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-22 01:46:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2959. [2024-11-22 01:46:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2232 states have (on average 1.6384408602150538) internal successors, (3657), 2345 states have internal predecessors, (3657), 597 states have call successors, (597), 121 states have call predecessors, (597), 129 states have return successors, (662), 581 states have call predecessors, (662), 592 states have call successors, (662) [2024-11-22 01:46:32,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 4916 transitions. [2024-11-22 01:46:32,827 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 4916 transitions. Word has length 105 [2024-11-22 01:46:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:32,828 INFO L471 AbstractCegarLoop]: Abstraction has 2959 states and 4916 transitions. [2024-11-22 01:46:32,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 4916 transitions. [2024-11-22 01:46:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-22 01:46:32,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:32,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:32,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:46:32,832 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:32,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:32,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1935421616, now seen corresponding path program 1 times [2024-11-22 01:46:32,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:32,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921698107] [2024-11-22 01:46:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:32,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:32,975 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 01:46:32,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:32,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921698107] [2024-11-22 01:46:32,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921698107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:32,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:32,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694810721] [2024-11-22 01:46:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:32,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:32,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:32,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:32,978 INFO L87 Difference]: Start difference. First operand 2959 states and 4916 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:35,830 INFO L93 Difference]: Finished difference Result 10963 states and 18675 transitions. [2024-11-22 01:46:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:35,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 106 [2024-11-22 01:46:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:35,905 INFO L225 Difference]: With dead ends: 10963 [2024-11-22 01:46:35,905 INFO L226 Difference]: Without dead ends: 8051 [2024-11-22 01:46:35,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:35,932 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 3255 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:35,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 1835 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 01:46:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8051 states. [2024-11-22 01:46:36,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8051 to 6881. [2024-11-22 01:46:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 5074 states have (on average 1.6284982262514782) internal successors, (8263), 5356 states have internal predecessors, (8263), 1532 states have call successors, (1532), 237 states have call predecessors, (1532), 274 states have return successors, (1744), 1507 states have call predecessors, (1744), 1527 states have call successors, (1744) [2024-11-22 01:46:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 11539 transitions. [2024-11-22 01:46:36,518 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 11539 transitions. Word has length 106 [2024-11-22 01:46:36,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:36,521 INFO L471 AbstractCegarLoop]: Abstraction has 6881 states and 11539 transitions. [2024-11-22 01:46:36,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:36,522 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 11539 transitions. [2024-11-22 01:46:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 01:46:36,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:36,525 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:36,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:46:36,525 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:36,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 880652253, now seen corresponding path program 1 times [2024-11-22 01:46:36,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:36,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937888448] [2024-11-22 01:46:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:36,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:36,734 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 01:46:36,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:36,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937888448] [2024-11-22 01:46:36,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937888448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:36,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:36,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:36,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662395515] [2024-11-22 01:46:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:36,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:36,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:36,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:36,737 INFO L87 Difference]: Start difference. First operand 6881 states and 11539 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:39,965 INFO L93 Difference]: Finished difference Result 27416 states and 47148 transitions. [2024-11-22 01:46:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:39,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 107 [2024-11-22 01:46:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:40,109 INFO L225 Difference]: With dead ends: 27416 [2024-11-22 01:46:40,109 INFO L226 Difference]: Without dead ends: 20584 [2024-11-22 01:46:40,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:40,158 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 3267 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 4120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:40,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 1856 Invalid, 4120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 01:46:40,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20584 states. [2024-11-22 01:46:41,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20584 to 17039. [2024-11-22 01:46:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17039 states, 12313 states have (on average 1.618939332412897) internal successors, (19934), 13047 states have internal predecessors, (19934), 4121 states have call successors, (4121), 469 states have call predecessors, (4121), 604 states have return successors, (4824), 4079 states have call predecessors, (4824), 4116 states have call successors, (4824) [2024-11-22 01:46:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17039 states to 17039 states and 28879 transitions. [2024-11-22 01:46:41,584 INFO L78 Accepts]: Start accepts. Automaton has 17039 states and 28879 transitions. Word has length 107 [2024-11-22 01:46:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:41,584 INFO L471 AbstractCegarLoop]: Abstraction has 17039 states and 28879 transitions. [2024-11-22 01:46:41,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:41,585 INFO L276 IsEmpty]: Start isEmpty. Operand 17039 states and 28879 transitions. [2024-11-22 01:46:41,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-22 01:46:41,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:41,589 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:41,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:46:41,590 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:41,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:41,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1666194731, now seen corresponding path program 1 times [2024-11-22 01:46:41,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:41,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60059524] [2024-11-22 01:46:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:41,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:41,734 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 01:46:41,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:41,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60059524] [2024-11-22 01:46:41,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60059524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:41,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:41,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:41,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000590025] [2024-11-22 01:46:41,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:41,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:41,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:41,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:41,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:41,736 INFO L87 Difference]: Start difference. First operand 17039 states and 28879 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:47,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:47,552 INFO L93 Difference]: Finished difference Result 72647 states and 126146 transitions. [2024-11-22 01:46:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:47,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 108 [2024-11-22 01:46:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:48,009 INFO L225 Difference]: With dead ends: 72647 [2024-11-22 01:46:48,010 INFO L226 Difference]: Without dead ends: 55661 [2024-11-22 01:46:48,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:48,128 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 3279 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 3265 mSolverCounterSat, 866 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 4131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 866 IncrementalHoareTripleChecker+Valid, 3265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:48,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 1877 Invalid, 4131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [866 Valid, 3265 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 01:46:48,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55661 states. [2024-11-22 01:46:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55661 to 44665. [2024-11-22 01:46:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44665 states, 31804 states have (on average 1.6114010816249529) internal successors, (51249), 33778 states have internal predecessors, (51249), 11470 states have call successors, (11470), 933 states have call predecessors, (11470), 1390 states have return successors, (13798), 11391 states have call predecessors, (13798), 11465 states have call successors, (13798) [2024-11-22 01:46:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44665 states to 44665 states and 76517 transitions. [2024-11-22 01:46:52,761 INFO L78 Accepts]: Start accepts. Automaton has 44665 states and 76517 transitions. Word has length 108 [2024-11-22 01:46:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:52,762 INFO L471 AbstractCegarLoop]: Abstraction has 44665 states and 76517 transitions. [2024-11-22 01:46:52,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:46:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 44665 states and 76517 transitions. [2024-11-22 01:46:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 01:46:52,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:52,766 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:52,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:46:52,767 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:52,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:52,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1072159586, now seen corresponding path program 1 times [2024-11-22 01:46:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:52,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29515997] [2024-11-22 01:46:52,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:52,953 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 01:46:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:52,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29515997] [2024-11-22 01:46:52,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29515997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:52,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:52,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:52,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328105648] [2024-11-22 01:46:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:52,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:52,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:52,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:52,958 INFO L87 Difference]: Start difference. First operand 44665 states and 76517 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-22 01:47:07,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:47:07,323 INFO L93 Difference]: Finished difference Result 201998 states and 353670 transitions. [2024-11-22 01:47:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:47:07,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 6 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 109 [2024-11-22 01:47:07,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:47:09,103 INFO L225 Difference]: With dead ends: 201998 [2024-11-22 01:47:09,103 INFO L226 Difference]: Without dead ends: 157394 [2024-11-22 01:47:09,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:47:09,406 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 3291 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3337 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:47:09,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3337 Valid, 1898 Invalid, 4142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 01:47:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157394 states.