./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:01:30,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:01:30,425 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:01:30,430 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:01:30,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:01:30,456 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:01:30,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:01:30,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:01:30,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:01:30,459 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:01:30,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:01:30,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:01:30,460 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:01:30,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:01:30,463 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:01:30,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:01:30,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:01:30,464 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:01:30,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:01:30,464 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:01:30,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:01:30,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:01:30,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:01:30,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:01:30,470 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:01:30,470 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:01:30,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:01:30,470 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:01:30,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:01:30,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:01:30,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:01:30,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:01:30,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:01:30,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:01:30,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:01:30,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:01:30,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:01:30,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:01:30,473 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:01:30,473 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:01:30,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:01:30,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:01:30,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68493680033c9035e39b01d00eb3730662e9195bee3c7e3d4b2805e2b52b60ec [2024-11-18 14:01:30,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:01:30,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:01:30,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:01:30,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:01:30,817 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:01:30,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-11-18 14:01:32,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:01:32,637 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:01:32,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product25.cil.c [2024-11-18 14:01:32,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da28db7c/cf2005d50e83476590c220db8f2696a6/FLAGb4906d1a1 [2024-11-18 14:01:32,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0da28db7c/cf2005d50e83476590c220db8f2696a6 [2024-11-18 14:01:32,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:01:32,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:01:32,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:01:32,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:01:32,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:01:32,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:01:32" (1/1) ... [2024-11-18 14:01:32,893 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3dea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:32, skipping insertion in model container [2024-11-18 14:01:32,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:01:32" (1/1) ... [2024-11-18 14:01:32,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:01:33,502 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_product25.cil.c[66231,66244] [2024-11-18 14:01:33,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:01:33,549 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:01:33,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-18 14:01:33,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [86] [2024-11-18 14:01:33,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [100] [2024-11-18 14:01:33,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [286] [2024-11-18 14:01:33,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1765] [2024-11-18 14:01:33,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1884] [2024-11-18 14:01:33,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2546] [2024-11-18 14:01:33,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2638] [2024-11-18 14:01:33,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3004] [2024-11-18 14:01:33,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3013] [2024-11-18 14:01:33,669 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_product25.cil.c[66231,66244] [2024-11-18 14:01:33,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:01:33,712 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:01:33,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33 WrapperNode [2024-11-18 14:01:33,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:01:33,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:01:33,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:01:33,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:01:33,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,819 INFO L138 Inliner]: procedures = 91, calls = 334, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 845 [2024-11-18 14:01:33,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:01:33,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:01:33,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:01:33,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:01:33,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,882 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-18 14:01:33,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:01:33,953 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:01:33,953 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:01:33,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:01:33,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (1/1) ... [2024-11-18 14:01:33,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:01:33,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:01:33,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:01:33,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:01:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:01:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-18 14:01:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-18 14:01:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 14:01:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 14:01:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 14:01:34,043 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 14:01:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 14:01:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 14:01:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 14:01:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 14:01:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:01:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:01:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:01:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:01:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 14:01:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 14:01:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:01:34,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:01:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 14:01:34,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 14:01:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 14:01:34,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 14:01:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 14:01:34,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 14:01:34,049 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 14:01:34,049 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 14:01:34,049 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 14:01:34,049 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 14:01:34,049 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 14:01:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 14:01:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 14:01:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 14:01:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 14:01:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 14:01:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:01:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:01:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:01:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:01:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:01:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:01:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:01:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 14:01:34,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 14:01:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 14:01:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 14:01:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 14:01:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 14:01:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:01:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:01:34,054 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 14:01:34,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 14:01:34,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:01:34,274 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:01:35,497 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-18 14:01:35,498 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:01:35,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:01:35,542 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:01:35,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:01:35 BoogieIcfgContainer [2024-11-18 14:01:35,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:01:35,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:01:35,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:01:35,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:01:35,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:01:32" (1/3) ... [2024-11-18 14:01:35,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c64833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:01:35, skipping insertion in model container [2024-11-18 14:01:35,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:01:33" (2/3) ... [2024-11-18 14:01:35,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c64833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:01:35, skipping insertion in model container [2024-11-18 14:01:35,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:01:35" (3/3) ... [2024-11-18 14:01:35,555 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2024-11-18 14:01:35,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:01:35,572 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:01:35,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:01:35,671 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;@541ecc5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:01:35,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:01:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 541 states, 430 states have (on average 1.7116279069767442) internal successors, (736), 451 states have internal predecessors, (736), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-18 14:01:35,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:01:35,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:35,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:35,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:35,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1781440538, now seen corresponding path program 1 times [2024-11-18 14:01:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:35,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855220646] [2024-11-18 14:01:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:35,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:36,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:36,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855220646] [2024-11-18 14:01:36,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855220646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:36,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:36,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:36,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705241120] [2024-11-18 14:01:36,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:36,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:36,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:36,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:36,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:36,373 INFO L87 Difference]: Start difference. First operand has 541 states, 430 states have (on average 1.7116279069767442) internal successors, (736), 451 states have internal predecessors, (736), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:36,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:36,552 INFO L93 Difference]: Finished difference Result 1062 states and 1799 transitions. [2024-11-18 14:01:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:36,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-18 14:01:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:36,581 INFO L225 Difference]: With dead ends: 1062 [2024-11-18 14:01:36,581 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:36,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:36,595 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 5 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:36,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2669 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:36,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:36,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.7075471698113207) internal successors, (724), 443 states have internal predecessors, (724), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 895 transitions. [2024-11-18 14:01:36,700 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 895 transitions. Word has length 74 [2024-11-18 14:01:36,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:36,701 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 895 transitions. [2024-11-18 14:01:36,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 895 transitions. [2024-11-18 14:01:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-18 14:01:36,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:36,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:36,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:01:36,710 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:36,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:36,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1936420574, now seen corresponding path program 1 times [2024-11-18 14:01:36,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:36,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47760261] [2024-11-18 14:01:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:36,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:36,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47760261] [2024-11-18 14:01:36,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47760261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:36,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:36,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702783363] [2024-11-18 14:01:36,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:36,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:36,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:36,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:36,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:36,974 INFO L87 Difference]: Start difference. First operand 533 states and 895 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:37,051 INFO L93 Difference]: Finished difference Result 1048 states and 1767 transitions. [2024-11-18 14:01:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:37,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-11-18 14:01:37,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:37,057 INFO L225 Difference]: With dead ends: 1048 [2024-11-18 14:01:37,057 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:37,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,062 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 4 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:37,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2648 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:37,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:37,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.705188679245283) internal successors, (723), 443 states have internal predecessors, (723), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:37,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 894 transitions. [2024-11-18 14:01:37,097 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 894 transitions. Word has length 77 [2024-11-18 14:01:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:37,097 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 894 transitions. [2024-11-18 14:01:37,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 894 transitions. [2024-11-18 14:01:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-18 14:01:37,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:37,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:37,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:01:37,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:37,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1742563414, now seen corresponding path program 1 times [2024-11-18 14:01:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334237827] [2024-11-18 14:01:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:37,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:37,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:37,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334237827] [2024-11-18 14:01:37,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334237827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:37,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:37,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204294564] [2024-11-18 14:01:37,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:37,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:37,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:37,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:37,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,250 INFO L87 Difference]: Start difference. First operand 533 states and 894 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:37,324 INFO L93 Difference]: Finished difference Result 1048 states and 1766 transitions. [2024-11-18 14:01:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:37,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-18 14:01:37,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:37,331 INFO L225 Difference]: With dead ends: 1048 [2024-11-18 14:01:37,331 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:37,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,336 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 3 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:37,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2648 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:37,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.7028301886792452) internal successors, (722), 443 states have internal predecessors, (722), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 893 transitions. [2024-11-18 14:01:37,365 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 893 transitions. Word has length 78 [2024-11-18 14:01:37,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:37,366 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 893 transitions. [2024-11-18 14:01:37,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 893 transitions. [2024-11-18 14:01:37,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-18 14:01:37,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:37,370 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] [2024-11-18 14:01:37,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:01:37,370 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:37,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:37,372 INFO L85 PathProgramCache]: Analyzing trace with hash -80827046, now seen corresponding path program 1 times [2024-11-18 14:01:37,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:37,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972370164] [2024-11-18 14:01:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:37,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:37,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:37,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972370164] [2024-11-18 14:01:37,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972370164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:37,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:37,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:37,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633801889] [2024-11-18 14:01:37,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:37,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:37,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:37,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,536 INFO L87 Difference]: Start difference. First operand 533 states and 893 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:37,593 INFO L93 Difference]: Finished difference Result 1048 states and 1765 transitions. [2024-11-18 14:01:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:37,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-18 14:01:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:37,600 INFO L225 Difference]: With dead ends: 1048 [2024-11-18 14:01:37,600 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:37,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,604 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 2 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:37,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2648 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.7004716981132075) internal successors, (721), 443 states have internal predecessors, (721), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:37,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 892 transitions. [2024-11-18 14:01:37,626 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 892 transitions. Word has length 79 [2024-11-18 14:01:37,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:37,627 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 892 transitions. [2024-11-18 14:01:37,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,628 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 892 transitions. [2024-11-18 14:01:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-18 14:01:37,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:37,631 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:37,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:01:37,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:37,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -880142254, now seen corresponding path program 1 times [2024-11-18 14:01:37,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:37,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874226497] [2024-11-18 14:01:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:37,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:37,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874226497] [2024-11-18 14:01:37,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874226497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:37,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:37,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:37,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299205383] [2024-11-18 14:01:37,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:37,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:37,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:37,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:37,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,751 INFO L87 Difference]: Start difference. First operand 533 states and 892 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:37,788 INFO L93 Difference]: Finished difference Result 1048 states and 1764 transitions. [2024-11-18 14:01:37,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:37,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2024-11-18 14:01:37,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:37,793 INFO L225 Difference]: With dead ends: 1048 [2024-11-18 14:01:37,793 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:37,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,798 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 1 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:37,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2648 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:37,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.6981132075471699) internal successors, (720), 443 states have internal predecessors, (720), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 891 transitions. [2024-11-18 14:01:37,823 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 891 transitions. Word has length 80 [2024-11-18 14:01:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:37,823 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 891 transitions. [2024-11-18 14:01:37,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 891 transitions. [2024-11-18 14:01:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:01:37,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:37,828 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:37,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:01:37,828 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:37,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:37,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2122391477, now seen corresponding path program 1 times [2024-11-18 14:01:37,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:37,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333485133] [2024-11-18 14:01:37,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:37,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:37,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:37,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333485133] [2024-11-18 14:01:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333485133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:37,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:37,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729090250] [2024-11-18 14:01:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:37,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:37,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:37,950 INFO L87 Difference]: Start difference. First operand 533 states and 891 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:37,989 INFO L93 Difference]: Finished difference Result 1048 states and 1763 transitions. [2024-11-18 14:01:37,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:37,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-11-18 14:01:37,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:37,994 INFO L225 Difference]: With dead ends: 1048 [2024-11-18 14:01:37,994 INFO L226 Difference]: Without dead ends: 533 [2024-11-18 14:01:37,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:38,000 INFO L432 NwaCegarLoop]: 884 mSDtfsCounter, 0 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:38,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2648 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:38,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-18 14:01:38,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-18 14:01:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 424 states have (on average 1.695754716981132) internal successors, (719), 443 states have internal predecessors, (719), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 890 transitions. [2024-11-18 14:01:38,020 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 890 transitions. Word has length 81 [2024-11-18 14:01:38,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:38,020 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 890 transitions. [2024-11-18 14:01:38,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 890 transitions. [2024-11-18 14:01:38,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-18 14:01:38,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:38,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:38,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:01:38,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:38,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2104278, now seen corresponding path program 1 times [2024-11-18 14:01:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305110607] [2024-11-18 14:01:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:38,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:38,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305110607] [2024-11-18 14:01:38,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305110607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:38,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:38,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:01:38,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252461430] [2024-11-18 14:01:38,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:38,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:01:38,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:38,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:01:38,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:01:38,253 INFO L87 Difference]: Start difference. First operand 533 states and 890 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:38,372 INFO L93 Difference]: Finished difference Result 1008 states and 1687 transitions. [2024-11-18 14:01:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:01:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 81 [2024-11-18 14:01:38,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:38,395 INFO L225 Difference]: With dead ends: 1008 [2024-11-18 14:01:38,395 INFO L226 Difference]: Without dead ends: 527 [2024-11-18 14:01:38,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:01:38,398 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 91 mSDsluCounter, 6048 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6924 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:38,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6924 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:01:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-18 14:01:38,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-18 14:01:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 418 states have (on average 1.6889952153110048) internal successors, (706), 437 states have internal predecessors, (706), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 877 transitions. [2024-11-18 14:01:38,417 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 877 transitions. Word has length 81 [2024-11-18 14:01:38,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:38,419 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 877 transitions. [2024-11-18 14:01:38,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 877 transitions. [2024-11-18 14:01:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-18 14:01:38,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:38,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:38,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:01:38,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:38,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:38,425 INFO L85 PathProgramCache]: Analyzing trace with hash -122588652, now seen corresponding path program 1 times [2024-11-18 14:01:38,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:38,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274351741] [2024-11-18 14:01:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:38,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:38,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:38,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274351741] [2024-11-18 14:01:38,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274351741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:38,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508548706] [2024-11-18 14:01:38,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:38,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:38,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:38,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:38,577 INFO L87 Difference]: Start difference. First operand 527 states and 877 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:38,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:38,779 INFO L93 Difference]: Finished difference Result 1011 states and 1688 transitions. [2024-11-18 14:01:38,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:01:38,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2024-11-18 14:01:38,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:38,784 INFO L225 Difference]: With dead ends: 1011 [2024-11-18 14:01:38,784 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 14:01:38,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:38,787 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 55 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:38,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4141 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:01:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 14:01:38,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 527. [2024-11-18 14:01:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 418 states have (on average 1.6794258373205742) internal successors, (702), 437 states have internal predecessors, (702), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:38,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 873 transitions. [2024-11-18 14:01:38,808 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 873 transitions. Word has length 82 [2024-11-18 14:01:38,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:38,809 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 873 transitions. [2024-11-18 14:01:38,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:38,809 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 873 transitions. [2024-11-18 14:01:38,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-18 14:01:38,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:38,814 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:38,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:01:38,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:38,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1777737991, now seen corresponding path program 1 times [2024-11-18 14:01:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:38,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726390615] [2024-11-18 14:01:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:38,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:38,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726390615] [2024-11-18 14:01:38,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726390615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:38,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:38,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:38,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215604633] [2024-11-18 14:01:38,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:38,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:38,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:38,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:38,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:38,975 INFO L87 Difference]: Start difference. First operand 527 states and 873 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:39,150 INFO L93 Difference]: Finished difference Result 1011 states and 1684 transitions. [2024-11-18 14:01:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:01:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2024-11-18 14:01:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:39,155 INFO L225 Difference]: With dead ends: 1011 [2024-11-18 14:01:39,156 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 14:01:39,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:39,160 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 54 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:39,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4141 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:01:39,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 14:01:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 527. [2024-11-18 14:01:39,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 418 states have (on average 1.6698564593301435) internal successors, (698), 437 states have internal predecessors, (698), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 869 transitions. [2024-11-18 14:01:39,182 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 869 transitions. Word has length 83 [2024-11-18 14:01:39,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:39,182 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 869 transitions. [2024-11-18 14:01:39,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 869 transitions. [2024-11-18 14:01:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 14:01:39,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:39,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:39,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:01:39,186 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:39,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:39,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1604533177, now seen corresponding path program 1 times [2024-11-18 14:01:39,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:39,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738841552] [2024-11-18 14:01:39,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:39,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:39,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:39,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738841552] [2024-11-18 14:01:39,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738841552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:39,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:39,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:39,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783917630] [2024-11-18 14:01:39,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:39,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:39,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:39,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:39,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:39,347 INFO L87 Difference]: Start difference. First operand 527 states and 869 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:39,499 INFO L93 Difference]: Finished difference Result 1011 states and 1680 transitions. [2024-11-18 14:01:39,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:01:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-18 14:01:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:39,505 INFO L225 Difference]: With dead ends: 1011 [2024-11-18 14:01:39,505 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 14:01:39,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:39,508 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 53 mSDsluCounter, 3290 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4123 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:39,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4123 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:01:39,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 14:01:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 527. [2024-11-18 14:01:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 418 states have (on average 1.6602870813397128) internal successors, (694), 437 states have internal predecessors, (694), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 865 transitions. [2024-11-18 14:01:39,525 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 865 transitions. Word has length 84 [2024-11-18 14:01:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:39,526 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 865 transitions. [2024-11-18 14:01:39,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:39,526 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 865 transitions. [2024-11-18 14:01:39,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-18 14:01:39,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:39,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:39,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:01:39,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:39,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:39,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1771288633, now seen corresponding path program 1 times [2024-11-18 14:01:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:39,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955283338] [2024-11-18 14:01:39,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:39,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:39,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:39,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:39,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955283338] [2024-11-18 14:01:39,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955283338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:39,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:39,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:01:39,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419333301] [2024-11-18 14:01:39,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:39,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:01:39,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:39,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:01:39,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:39,698 INFO L87 Difference]: Start difference. First operand 527 states and 865 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:39,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:39,762 INFO L93 Difference]: Finished difference Result 1002 states and 1662 transitions. [2024-11-18 14:01:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:01:39,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-18 14:01:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:39,767 INFO L225 Difference]: With dead ends: 1002 [2024-11-18 14:01:39,768 INFO L226 Difference]: Without dead ends: 506 [2024-11-18 14:01:39,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:01:39,771 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 84 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5051 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:39,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5051 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-18 14:01:39,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-18 14:01:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.6624685138539044) internal successors, (660), 416 states have internal predecessors, (660), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:39,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 831 transitions. [2024-11-18 14:01:39,789 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 831 transitions. Word has length 84 [2024-11-18 14:01:39,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:39,790 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 831 transitions. [2024-11-18 14:01:39,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 831 transitions. [2024-11-18 14:01:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 14:01:39,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:39,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:39,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:01:39,793 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:39,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:39,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2061917186, now seen corresponding path program 1 times [2024-11-18 14:01:39,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:39,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356435373] [2024-11-18 14:01:39,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:39,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:39,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:39,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356435373] [2024-11-18 14:01:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356435373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:39,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859399492] [2024-11-18 14:01:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:39,933 INFO L87 Difference]: Start difference. First operand 506 states and 831 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:40,002 INFO L93 Difference]: Finished difference Result 981 states and 1628 transitions. [2024-11-18 14:01:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:01:40,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-18 14:01:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:40,008 INFO L225 Difference]: With dead ends: 981 [2024-11-18 14:01:40,008 INFO L226 Difference]: Without dead ends: 506 [2024-11-18 14:01:40,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:40,011 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 17 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:40,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4061 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-18 14:01:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-18 14:01:40,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.6599496221662469) internal successors, (659), 416 states have internal predecessors, (659), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 830 transitions. [2024-11-18 14:01:40,028 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 830 transitions. Word has length 85 [2024-11-18 14:01:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:40,029 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 830 transitions. [2024-11-18 14:01:40,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 830 transitions. [2024-11-18 14:01:40,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-18 14:01:40,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:40,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:40,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:01:40,032 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:40,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -900435618, now seen corresponding path program 1 times [2024-11-18 14:01:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:40,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213582610] [2024-11-18 14:01:40,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:40,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:40,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:40,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213582610] [2024-11-18 14:01:40,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213582610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:40,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:40,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:40,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162602387] [2024-11-18 14:01:40,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:40,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:40,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:40,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:40,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:40,172 INFO L87 Difference]: Start difference. First operand 506 states and 830 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:40,241 INFO L93 Difference]: Finished difference Result 981 states and 1627 transitions. [2024-11-18 14:01:40,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:01:40,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2024-11-18 14:01:40,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:40,246 INFO L225 Difference]: With dead ends: 981 [2024-11-18 14:01:40,246 INFO L226 Difference]: Without dead ends: 506 [2024-11-18 14:01:40,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:40,249 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 16 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:40,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4061 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-18 14:01:40,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-18 14:01:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.6574307304785894) internal successors, (658), 416 states have internal predecessors, (658), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 829 transitions. [2024-11-18 14:01:40,265 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 829 transitions. Word has length 86 [2024-11-18 14:01:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:40,266 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 829 transitions. [2024-11-18 14:01:40,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 829 transitions. [2024-11-18 14:01:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 14:01:40,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:40,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:40,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:01:40,269 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:40,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash 863997701, now seen corresponding path program 1 times [2024-11-18 14:01:40,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:40,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374993580] [2024-11-18 14:01:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:40,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:40,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:40,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374993580] [2024-11-18 14:01:40,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374993580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:40,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:40,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:01:40,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571270637] [2024-11-18 14:01:40,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:40,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:01:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:01:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:40,354 INFO L87 Difference]: Start difference. First operand 506 states and 829 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:40,384 INFO L93 Difference]: Finished difference Result 981 states and 1626 transitions. [2024-11-18 14:01:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:01:40,384 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-11-18 14:01:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:40,389 INFO L225 Difference]: With dead ends: 981 [2024-11-18 14:01:40,389 INFO L226 Difference]: Without dead ends: 506 [2024-11-18 14:01:40,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:01:40,392 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 9 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:40,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2460 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:40,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-18 14:01:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-18 14:01:40,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.654911838790932) internal successors, (657), 416 states have internal predecessors, (657), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 828 transitions. [2024-11-18 14:01:40,410 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 828 transitions. Word has length 87 [2024-11-18 14:01:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:40,411 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 828 transitions. [2024-11-18 14:01:40,411 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, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:01:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 828 transitions. [2024-11-18 14:01:40,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 14:01:40,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:40,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:40,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:01:40,414 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:40,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:40,415 INFO L85 PathProgramCache]: Analyzing trace with hash -396919549, now seen corresponding path program 1 times [2024-11-18 14:01:40,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:40,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689889132] [2024-11-18 14:01:40,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:40,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:40,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:40,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689889132] [2024-11-18 14:01:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689889132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:40,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:01:40,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239509344] [2024-11-18 14:01:40,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:40,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:01:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:01:40,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:01:40,669 INFO L87 Difference]: Start difference. First operand 506 states and 828 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:40,777 INFO L93 Difference]: Finished difference Result 975 states and 1614 transitions. [2024-11-18 14:01:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:01:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-18 14:01:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:40,783 INFO L225 Difference]: With dead ends: 975 [2024-11-18 14:01:40,784 INFO L226 Difference]: Without dead ends: 506 [2024-11-18 14:01:40,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:01:40,788 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 5 mSDsluCounter, 6475 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7287 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:40,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7287 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:01:40,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-18 14:01:40,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-18 14:01:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 397 states have (on average 1.6523929471032746) internal successors, (656), 416 states have internal predecessors, (656), 88 states have call successors, (88), 21 states have call predecessors, (88), 20 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 14:01:40,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 827 transitions. [2024-11-18 14:01:40,807 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 827 transitions. Word has length 87 [2024-11-18 14:01:40,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:40,807 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 827 transitions. [2024-11-18 14:01:40,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:40,808 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 827 transitions. [2024-11-18 14:01:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-18 14:01:40,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:40,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:40,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:01:40,812 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:40,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:40,812 INFO L85 PathProgramCache]: Analyzing trace with hash 655428563, now seen corresponding path program 1 times [2024-11-18 14:01:40,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:40,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644151788] [2024-11-18 14:01:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:40,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:41,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:41,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:41,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644151788] [2024-11-18 14:01:41,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644151788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:41,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:41,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:01:41,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576944320] [2024-11-18 14:01:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:41,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:01:41,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:41,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:01:41,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:01:41,069 INFO L87 Difference]: Start difference. First operand 506 states and 827 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:42,870 INFO L93 Difference]: Finished difference Result 971 states and 1626 transitions. [2024-11-18 14:01:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:01:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2024-11-18 14:01:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:42,875 INFO L225 Difference]: With dead ends: 971 [2024-11-18 14:01:42,876 INFO L226 Difference]: Without dead ends: 510 [2024-11-18 14:01:42,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:01:42,879 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1278 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:42,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 1589 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 14:01:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-18 14:01:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-18 14:01:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 400 states have (on average 1.6475) internal successors, (659), 419 states have internal predecessors, (659), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (99), 82 states have call predecessors, (99), 83 states have call successors, (99) [2024-11-18 14:01:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 846 transitions. [2024-11-18 14:01:42,907 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 846 transitions. Word has length 88 [2024-11-18 14:01:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:42,908 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 846 transitions. [2024-11-18 14:01:42,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:01:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 846 transitions. [2024-11-18 14:01:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:01:42,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:42,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:42,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:01:42,911 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:42,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 635406832, now seen corresponding path program 1 times [2024-11-18 14:01:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:42,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29892179] [2024-11-18 14:01:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:43,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:43,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29892179] [2024-11-18 14:01:43,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29892179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:43,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:43,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:01:43,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967053017] [2024-11-18 14:01:43,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:43,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:01:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:01:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:43,072 INFO L87 Difference]: Start difference. First operand 510 states and 846 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:46,380 INFO L93 Difference]: Finished difference Result 1826 states and 3128 transitions. [2024-11-18 14:01:46,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:01:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 89 [2024-11-18 14:01:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:46,390 INFO L225 Difference]: With dead ends: 1826 [2024-11-18 14:01:46,390 INFO L226 Difference]: Without dead ends: 1361 [2024-11-18 14:01:46,393 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 [2024-11-18 14:01:46,394 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 2309 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 4652 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2378 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 5228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 4652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:46,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2378 Valid, 2590 Invalid, 5228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 4652 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 14:01:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-18 14:01:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1304. [2024-11-18 14:01:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1020 states have (on average 1.6627450980392158) internal successors, (1696), 1068 states have internal predecessors, (1696), 229 states have call successors, (229), 54 states have call predecessors, (229), 54 states have return successors, (244), 218 states have call predecessors, (244), 224 states have call successors, (244) [2024-11-18 14:01:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 2169 transitions. [2024-11-18 14:01:46,470 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 2169 transitions. Word has length 89 [2024-11-18 14:01:46,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:46,470 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 2169 transitions. [2024-11-18 14:01:46,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 2169 transitions. [2024-11-18 14:01:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:01:46,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:46,473 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:46,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:01:46,474 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:46,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2089167486, now seen corresponding path program 1 times [2024-11-18 14:01:46,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:46,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630542463] [2024-11-18 14:01:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:46,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:46,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:46,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630542463] [2024-11-18 14:01:46,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630542463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:46,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:01:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950176461] [2024-11-18 14:01:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:46,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:01:46,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:01:46,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:46,697 INFO L87 Difference]: Start difference. First operand 1304 states and 2169 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:50,586 INFO L93 Difference]: Finished difference Result 6148 states and 10560 transitions. [2024-11-18 14:01:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:01:50,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2024-11-18 14:01:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:50,637 INFO L225 Difference]: With dead ends: 6148 [2024-11-18 14:01:50,638 INFO L226 Difference]: Without dead ends: 4889 [2024-11-18 14:01:50,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:01:50,651 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 3074 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 5258 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 6062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 5258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:50,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 2856 Invalid, 6062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 5258 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-18 14:01:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2024-11-18 14:01:50,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4472. [2024-11-18 14:01:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4472 states, 3304 states have (on average 1.6592009685230025) internal successors, (5482), 3527 states have internal predecessors, (5482), 1004 states have call successors, (1004), 146 states have call predecessors, (1004), 163 states have return successors, (1204), 983 states have call predecessors, (1204), 999 states have call successors, (1204) [2024-11-18 14:01:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4472 states to 4472 states and 7690 transitions. [2024-11-18 14:01:51,029 INFO L78 Accepts]: Start accepts. Automaton has 4472 states and 7690 transitions. Word has length 91 [2024-11-18 14:01:51,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:51,029 INFO L471 AbstractCegarLoop]: Abstraction has 4472 states and 7690 transitions. [2024-11-18 14:01:51,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:51,030 INFO L276 IsEmpty]: Start isEmpty. Operand 4472 states and 7690 transitions. [2024-11-18 14:01:51,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:01:51,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:51,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:51,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:01:51,032 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:51,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:51,033 INFO L85 PathProgramCache]: Analyzing trace with hash 360432644, now seen corresponding path program 1 times [2024-11-18 14:01:51,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:51,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638869322] [2024-11-18 14:01:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:51,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:51,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:51,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638869322] [2024-11-18 14:01:51,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638869322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:51,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:51,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:01:51,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877756489] [2024-11-18 14:01:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:51,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:01:51,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:51,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:01:51,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:51,217 INFO L87 Difference]: Start difference. First operand 4472 states and 7690 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:54,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:54,038 INFO L93 Difference]: Finished difference Result 11897 states and 20579 transitions. [2024-11-18 14:01:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 14:01:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 91 [2024-11-18 14:01:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:54,138 INFO L225 Difference]: With dead ends: 11897 [2024-11-18 14:01:54,138 INFO L226 Difference]: Without dead ends: 8735 [2024-11-18 14:01:54,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:01:54,170 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 2344 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 4022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:54,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 1707 Invalid, 4022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 14:01:54,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8735 states. [2024-11-18 14:01:54,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8735 to 8284. [2024-11-18 14:01:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8284 states, 6177 states have (on average 1.6588959041605957) internal successors, (10247), 6578 states have internal predecessors, (10247), 1776 states have call successors, (1776), 269 states have call predecessors, (1776), 330 states have return successors, (2254), 1738 states have call predecessors, (2254), 1771 states have call successors, (2254) [2024-11-18 14:01:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8284 states to 8284 states and 14277 transitions. [2024-11-18 14:01:54,870 INFO L78 Accepts]: Start accepts. Automaton has 8284 states and 14277 transitions. Word has length 91 [2024-11-18 14:01:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:54,871 INFO L471 AbstractCegarLoop]: Abstraction has 8284 states and 14277 transitions. [2024-11-18 14:01:54,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-18 14:01:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8284 states and 14277 transitions. [2024-11-18 14:01:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-18 14:01:54,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:54,875 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:54,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:01:54,876 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:54,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash 16901981, now seen corresponding path program 1 times [2024-11-18 14:01:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:54,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817478424] [2024-11-18 14:01:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:54,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817478424] [2024-11-18 14:01:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817478424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:54,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:54,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:01:54,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051672412] [2024-11-18 14:01:54,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:54,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:01:54,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:54,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:01:54,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:01:54,995 INFO L87 Difference]: Start difference. First operand 8284 states and 14277 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:01:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:55,507 INFO L93 Difference]: Finished difference Result 15180 states and 26223 transitions. [2024-11-18 14:01:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:01:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-18 14:01:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:55,592 INFO L225 Difference]: With dead ends: 15180 [2024-11-18 14:01:55,593 INFO L226 Difference]: Without dead ends: 8371 [2024-11-18 14:01:55,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:01:55,638 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 0 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:55,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3270 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:01:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8371 states. [2024-11-18 14:01:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8371 to 8357. [2024-11-18 14:01:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8357 states, 6233 states have (on average 1.6524947858174235) internal successors, (10300), 6633 states have internal predecessors, (10300), 1773 states have call successors, (1773), 269 states have call predecessors, (1773), 350 states have return successors, (2317), 1756 states have call predecessors, (2317), 1768 states have call successors, (2317) [2024-11-18 14:01:56,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8357 states to 8357 states and 14390 transitions. [2024-11-18 14:01:56,303 INFO L78 Accepts]: Start accepts. Automaton has 8357 states and 14390 transitions. Word has length 96 [2024-11-18 14:01:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:56,304 INFO L471 AbstractCegarLoop]: Abstraction has 8357 states and 14390 transitions. [2024-11-18 14:01:56,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-18 14:01:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8357 states and 14390 transitions. [2024-11-18 14:01:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 14:01:56,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:56,307 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:56,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:01:56,308 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:56,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 979959048, now seen corresponding path program 1 times [2024-11-18 14:01:56,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:56,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785800430] [2024-11-18 14:01:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:01:56,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:56,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785800430] [2024-11-18 14:01:56,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785800430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:56,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:56,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:01:56,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614955548] [2024-11-18 14:01:56,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:56,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:01:56,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:01:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:01:56,537 INFO L87 Difference]: Start difference. First operand 8357 states and 14390 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:01:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:01:57,204 INFO L93 Difference]: Finished difference Result 16406 states and 28696 transitions. [2024-11-18 14:01:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:01:57,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-18 14:01:57,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:01:57,277 INFO L225 Difference]: With dead ends: 16406 [2024-11-18 14:01:57,278 INFO L226 Difference]: Without dead ends: 8505 [2024-11-18 14:01:57,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:57,318 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 218 mSDsluCounter, 3229 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:01:57,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 4103 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:01:57,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2024-11-18 14:01:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 8381. [2024-11-18 14:01:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8381 states, 6254 states have (on average 1.6311160857051488) internal successors, (10201), 6657 states have internal predecessors, (10201), 1773 states have call successors, (1773), 269 states have call predecessors, (1773), 353 states have return successors, (2329), 1756 states have call predecessors, (2329), 1768 states have call successors, (2329) [2024-11-18 14:01:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8381 states to 8381 states and 14303 transitions. [2024-11-18 14:01:57,994 INFO L78 Accepts]: Start accepts. Automaton has 8381 states and 14303 transitions. Word has length 103 [2024-11-18 14:01:57,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:01:57,995 INFO L471 AbstractCegarLoop]: Abstraction has 8381 states and 14303 transitions. [2024-11-18 14:01:57,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-18 14:01:57,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8381 states and 14303 transitions. [2024-11-18 14:01:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:01:58,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:01:58,006 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:01:58,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:01:58,007 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:01:58,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:01:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2082246360, now seen corresponding path program 1 times [2024-11-18 14:01:58,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:01:58,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953519721] [2024-11-18 14:01:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:01:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:01:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:01:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:01:58,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:01:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953519721] [2024-11-18 14:01:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953519721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:01:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:01:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:01:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394414028] [2024-11-18 14:01:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:01:58,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:01:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:01:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:01:58,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:01:58,261 INFO L87 Difference]: Start difference. First operand 8381 states and 14303 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-18 14:02:00,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:00,651 INFO L93 Difference]: Finished difference Result 16043 states and 27412 transitions. [2024-11-18 14:02:00,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 14:02:00,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-18 14:02:00,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:00,824 INFO L225 Difference]: With dead ends: 16043 [2024-11-18 14:02:00,824 INFO L226 Difference]: Without dead ends: 9153 [2024-11-18 14:02:00,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:02:00,852 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 2066 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 3498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:00,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 1645 Invalid, 3498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 14:02:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9153 states. [2024-11-18 14:02:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9153 to 8616. [2024-11-18 14:02:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8616 states, 6429 states have (on average 1.6207808368331) internal successors, (10420), 6850 states have internal predecessors, (10420), 1793 states have call successors, (1793), 294 states have call predecessors, (1793), 393 states have return successors, (2421), 1774 states have call predecessors, (2421), 1788 states have call successors, (2421) [2024-11-18 14:02:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8616 states to 8616 states and 14634 transitions. [2024-11-18 14:02:01,358 INFO L78 Accepts]: Start accepts. Automaton has 8616 states and 14634 transitions. Word has length 108 [2024-11-18 14:02:01,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:01,359 INFO L471 AbstractCegarLoop]: Abstraction has 8616 states and 14634 transitions. [2024-11-18 14:02:01,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-18 14:02:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8616 states and 14634 transitions. [2024-11-18 14:02:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:02:01,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:01,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:01,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:02:01,362 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:01,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash -766843929, now seen corresponding path program 1 times [2024-11-18 14:02:01,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:01,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311490085] [2024-11-18 14:02:01,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:01,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:02:01,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:01,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311490085] [2024-11-18 14:02:01,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311490085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:01,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:01,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:02:01,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867821704] [2024-11-18 14:02:01,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:01,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:02:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:01,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:02:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:02:01,610 INFO L87 Difference]: Start difference. First operand 8616 states and 14634 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-18 14:02:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:05,086 INFO L93 Difference]: Finished difference Result 18248 states and 30730 transitions. [2024-11-18 14:02:05,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:02:05,087 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 115 [2024-11-18 14:02:05,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:05,177 INFO L225 Difference]: With dead ends: 18248 [2024-11-18 14:02:05,177 INFO L226 Difference]: Without dead ends: 10942 [2024-11-18 14:02:05,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-18 14:02:05,220 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 2206 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 6026 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 6493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 6026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:05,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 2695 Invalid, 6493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 6026 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 14:02:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2024-11-18 14:02:05,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 10143. [2024-11-18 14:02:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10143 states, 7637 states have (on average 1.5986643970145344) internal successors, (12209), 8117 states have internal predecessors, (12209), 1986 states have call successors, (1986), 382 states have call predecessors, (1986), 519 states have return successors, (2704), 1946 states have call predecessors, (2704), 1981 states have call successors, (2704) [2024-11-18 14:02:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10143 states to 10143 states and 16899 transitions. [2024-11-18 14:02:06,112 INFO L78 Accepts]: Start accepts. Automaton has 10143 states and 16899 transitions. Word has length 115 [2024-11-18 14:02:06,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:06,113 INFO L471 AbstractCegarLoop]: Abstraction has 10143 states and 16899 transitions. [2024-11-18 14:02:06,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-18 14:02:06,113 INFO L276 IsEmpty]: Start isEmpty. Operand 10143 states and 16899 transitions. [2024-11-18 14:02:06,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:02:06,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:06,117 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:06,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:02:06,117 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:06,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:06,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1791537850, now seen corresponding path program 1 times [2024-11-18 14:02:06,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:06,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566391067] [2024-11-18 14:02:06,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:06,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:02:06,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:06,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566391067] [2024-11-18 14:02:06,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566391067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:06,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:06,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:02:06,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755077081] [2024-11-18 14:02:06,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:06,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:02:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:06,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:02:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:02:06,295 INFO L87 Difference]: Start difference. First operand 10143 states and 16899 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:02:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:06,900 INFO L93 Difference]: Finished difference Result 23538 states and 39306 transitions. [2024-11-18 14:02:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:02:06,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-18 14:02:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:07,042 INFO L225 Difference]: With dead ends: 23538 [2024-11-18 14:02:07,042 INFO L226 Difference]: Without dead ends: 14886 [2024-11-18 14:02:07,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:02:07,098 INFO L432 NwaCegarLoop]: 1347 mSDtfsCounter, 760 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:07,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 4833 Invalid, 52 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:02:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14886 states. [2024-11-18 14:02:08,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14886 to 13032. [2024-11-18 14:02:08,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13032 states, 9799 states have (on average 1.6115930196958874) internal successors, (15792), 10412 states have internal predecessors, (15792), 2601 states have call successors, (2601), 469 states have call predecessors, (2601), 631 states have return successors, (3488), 2571 states have call predecessors, (3488), 2596 states have call successors, (3488) [2024-11-18 14:02:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13032 states to 13032 states and 21881 transitions. [2024-11-18 14:02:08,322 INFO L78 Accepts]: Start accepts. Automaton has 13032 states and 21881 transitions. Word has length 115 [2024-11-18 14:02:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:08,323 INFO L471 AbstractCegarLoop]: Abstraction has 13032 states and 21881 transitions. [2024-11-18 14:02:08,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-18 14:02:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 13032 states and 21881 transitions. [2024-11-18 14:02:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:02:08,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:08,327 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:08,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:02:08,327 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:08,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:08,328 INFO L85 PathProgramCache]: Analyzing trace with hash 697991112, now seen corresponding path program 1 times [2024-11-18 14:02:08,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:08,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619129359] [2024-11-18 14:02:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:08,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:08,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:02:08,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:08,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619129359] [2024-11-18 14:02:08,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619129359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:08,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:08,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:02:08,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81539313] [2024-11-18 14:02:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:08,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:02:08,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:08,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:02:08,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:02:08,540 INFO L87 Difference]: Start difference. First operand 13032 states and 21881 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:02:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:09,823 INFO L93 Difference]: Finished difference Result 13164 states and 22111 transitions. [2024-11-18 14:02:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:02:09,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-18 14:02:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:09,959 INFO L225 Difference]: With dead ends: 13164 [2024-11-18 14:02:09,960 INFO L226 Difference]: Without dead ends: 13149 [2024-11-18 14:02:09,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:02:09,975 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 889 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:09,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 2899 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 14:02:09,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13149 states. [2024-11-18 14:02:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13149 to 13044. [2024-11-18 14:02:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13044 states, 9811 states have (on average 1.6108449699317093) internal successors, (15804), 10424 states have internal predecessors, (15804), 2601 states have call successors, (2601), 469 states have call predecessors, (2601), 631 states have return successors, (3488), 2571 states have call predecessors, (3488), 2596 states have call successors, (3488) [2024-11-18 14:02:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13044 states to 13044 states and 21893 transitions. [2024-11-18 14:02:11,047 INFO L78 Accepts]: Start accepts. Automaton has 13044 states and 21893 transitions. Word has length 115 [2024-11-18 14:02:11,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:11,047 INFO L471 AbstractCegarLoop]: Abstraction has 13044 states and 21893 transitions. [2024-11-18 14:02:11,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 14:02:11,048 INFO L276 IsEmpty]: Start isEmpty. Operand 13044 states and 21893 transitions. [2024-11-18 14:02:11,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-18 14:02:11,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:11,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:11,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:02:11,052 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:11,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:11,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1180856573, now seen corresponding path program 1 times [2024-11-18 14:02:11,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:11,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261174956] [2024-11-18 14:02:11,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:11,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-18 14:02:11,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:11,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261174956] [2024-11-18 14:02:11,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261174956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:11,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:11,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:02:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615930021] [2024-11-18 14:02:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:11,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:02:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:11,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:02:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:02:11,294 INFO L87 Difference]: Start difference. First operand 13044 states and 21893 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 14:02:12,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:12,141 INFO L93 Difference]: Finished difference Result 13059 states and 21911 transitions. [2024-11-18 14:02:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:02:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) Word has length 121 [2024-11-18 14:02:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:12,267 INFO L225 Difference]: With dead ends: 13059 [2024-11-18 14:02:12,267 INFO L226 Difference]: Without dead ends: 13044 [2024-11-18 14:02:12,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:02:12,284 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 0 mSDsluCounter, 4054 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:12,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4866 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:02:12,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13044 states. [2024-11-18 14:02:13,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13044 to 13044. [2024-11-18 14:02:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13044 states, 9811 states have (on average 1.6100295586586484) internal successors, (15796), 10424 states have internal predecessors, (15796), 2601 states have call successors, (2601), 469 states have call predecessors, (2601), 631 states have return successors, (3488), 2571 states have call predecessors, (3488), 2596 states have call successors, (3488) [2024-11-18 14:02:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13044 states to 13044 states and 21885 transitions. [2024-11-18 14:02:13,440 INFO L78 Accepts]: Start accepts. Automaton has 13044 states and 21885 transitions. Word has length 121 [2024-11-18 14:02:13,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:13,443 INFO L471 AbstractCegarLoop]: Abstraction has 13044 states and 21885 transitions. [2024-11-18 14:02:13,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-18 14:02:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13044 states and 21885 transitions. [2024-11-18 14:02:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 14:02:13,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:13,449 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:13,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-18 14:02:13,449 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:13,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1203653068, now seen corresponding path program 1 times [2024-11-18 14:02:13,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:13,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955811351] [2024-11-18 14:02:13,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:13,842 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 14:02:13,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:13,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955811351] [2024-11-18 14:02:13,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955811351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:13,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:13,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:02:13,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964687377] [2024-11-18 14:02:13,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:13,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:02:13,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:13,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:02:13,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:02:13,845 INFO L87 Difference]: Start difference. First operand 13044 states and 21885 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:02:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:15,958 INFO L93 Difference]: Finished difference Result 26093 states and 43941 transitions. [2024-11-18 14:02:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:02:15,959 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 130 [2024-11-18 14:02:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:16,083 INFO L225 Difference]: With dead ends: 26093 [2024-11-18 14:02:16,083 INFO L226 Difference]: Without dead ends: 13110 [2024-11-18 14:02:16,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:02:16,174 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1224 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:16,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1224 Valid, 1580 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-18 14:02:16,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13110 states. [2024-11-18 14:02:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13110 to 13044. [2024-11-18 14:02:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13044 states, 9811 states have (on average 1.6092141473855877) internal successors, (15788), 10424 states have internal predecessors, (15788), 2601 states have call successors, (2601), 469 states have call predecessors, (2601), 631 states have return successors, (3488), 2571 states have call predecessors, (3488), 2596 states have call successors, (3488) [2024-11-18 14:02:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13044 states to 13044 states and 21877 transitions. [2024-11-18 14:02:17,248 INFO L78 Accepts]: Start accepts. Automaton has 13044 states and 21877 transitions. Word has length 130 [2024-11-18 14:02:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:17,249 INFO L471 AbstractCegarLoop]: Abstraction has 13044 states and 21877 transitions. [2024-11-18 14:02:17,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 4 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:02:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 13044 states and 21877 transitions. [2024-11-18 14:02:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 14:02:17,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:17,256 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:17,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-18 14:02:17,256 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:17,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1961242468, now seen corresponding path program 1 times [2024-11-18 14:02:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993481300] [2024-11-18 14:02:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 14:02:17,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:17,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993481300] [2024-11-18 14:02:17,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993481300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:17,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:17,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:02:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184319372] [2024-11-18 14:02:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:17,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:02:17,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:17,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:02:17,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:02:17,437 INFO L87 Difference]: Start difference. First operand 13044 states and 21877 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:02:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:20,690 INFO L93 Difference]: Finished difference Result 43073 states and 74492 transitions. [2024-11-18 14:02:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:02:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2024-11-18 14:02:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:21,019 INFO L225 Difference]: With dead ends: 43073 [2024-11-18 14:02:21,019 INFO L226 Difference]: Without dead ends: 30074 [2024-11-18 14:02:21,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:02:21,105 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 1829 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:21,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 921 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 14:02:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30074 states. [2024-11-18 14:02:23,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30074 to 29381. [2024-11-18 14:02:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29381 states, 21528 states have (on average 1.6037718320327017) internal successors, (34526), 23018 states have internal predecessors, (34526), 6525 states have call successors, (6525), 933 states have call predecessors, (6525), 1327 states have return successors, (10104), 6486 states have call predecessors, (10104), 6520 states have call successors, (10104) [2024-11-18 14:02:23,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29381 states to 29381 states and 51155 transitions. [2024-11-18 14:02:23,439 INFO L78 Accepts]: Start accepts. Automaton has 29381 states and 51155 transitions. Word has length 141 [2024-11-18 14:02:23,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:23,440 INFO L471 AbstractCegarLoop]: Abstraction has 29381 states and 51155 transitions. [2024-11-18 14:02:23,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 14:02:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 29381 states and 51155 transitions. [2024-11-18 14:02:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 14:02:23,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:23,448 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:23,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-18 14:02:23,448 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:23,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:23,449 INFO L85 PathProgramCache]: Analyzing trace with hash 550113907, now seen corresponding path program 1 times [2024-11-18 14:02:23,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:23,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936261372] [2024-11-18 14:02:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:23,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 14:02:23,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:23,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936261372] [2024-11-18 14:02:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936261372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:02:23,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597423184] [2024-11-18 14:02:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:23,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:02:23,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:02:23,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:02:23,603 INFO L87 Difference]: Start difference. First operand 29381 states and 51155 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:02:29,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:02:29,985 INFO L93 Difference]: Finished difference Result 99200 states and 180307 transitions. [2024-11-18 14:02:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:02:29,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 140 [2024-11-18 14:02:29,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:02:30,757 INFO L225 Difference]: With dead ends: 99200 [2024-11-18 14:02:30,757 INFO L226 Difference]: Without dead ends: 69864 [2024-11-18 14:02:31,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:02:31,127 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1839 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:02:31,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 888 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 14:02:31,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69864 states. [2024-11-18 14:02:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69864 to 67990. [2024-11-18 14:02:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67990 states, 48409 states have (on average 1.5963560494949287) internal successors, (77278), 52097 states have internal predecessors, (77278), 16772 states have call successors, (16772), 1861 states have call predecessors, (16772), 2808 states have return successors, (30480), 16747 states have call predecessors, (30480), 16767 states have call successors, (30480) [2024-11-18 14:02:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67990 states to 67990 states and 124530 transitions. [2024-11-18 14:02:36,752 INFO L78 Accepts]: Start accepts. Automaton has 67990 states and 124530 transitions. Word has length 140 [2024-11-18 14:02:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:02:36,753 INFO L471 AbstractCegarLoop]: Abstraction has 67990 states and 124530 transitions. [2024-11-18 14:02:36,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-18 14:02:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 67990 states and 124530 transitions. [2024-11-18 14:02:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-18 14:02:36,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:02:36,764 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:02:36,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-18 14:02:36,764 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:02:36,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:02:36,765 INFO L85 PathProgramCache]: Analyzing trace with hash 732680798, now seen corresponding path program 1 times [2024-11-18 14:02:36,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:02:36,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197672799] [2024-11-18 14:02:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:02:36,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:02:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:02:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 14:02:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:02:36,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197672799] [2024-11-18 14:02:36,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197672799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:02:36,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:02:36,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:02:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823571327] [2024-11-18 14:02:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:02:36,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:02:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:02:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:02:36,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:02:36,961 INFO L87 Difference]: Start difference. First operand 67990 states and 124530 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)