./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd --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 8090ac1e7e8284dad30217492085f9e11f6491349a4adb4aa3c2904a72e0131a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:54:15,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:54:15,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:54:15,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:54:15,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:54:15,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:54:15,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:54:15,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:54:15,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:54:15,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:54:15,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:54:15,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:54:15,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:54:15,351 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:54:15,351 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:54:15,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:54:15,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:54:15,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:54:15,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:54:15,353 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:54:15,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:54:15,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:54:15,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:54:15,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:54:15,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:54:15,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:54:15,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:54:15,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:54:15,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:54:15,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:54:15,356 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8090ac1e7e8284dad30217492085f9e11f6491349a4adb4aa3c2904a72e0131a [2024-11-13 15:54:15,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:54:15,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:54:15,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:54:15,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:54:15,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:54:15,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c Unable to find full path for "g++" [2024-11-13 15:54:17,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:54:17,935 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:54:17,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c [2024-11-13 15:54:17,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/data/1efe8be00/09beb6e16ded4992b52497233230bb8c/FLAGda777245d [2024-11-13 15:54:17,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/data/1efe8be00/09beb6e16ded4992b52497233230bb8c [2024-11-13 15:54:17,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:54:17,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:54:17,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:54:17,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:54:17,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:54:17,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:54:17" (1/1) ... [2024-11-13 15:54:17,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d9d5b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:17, skipping insertion in model container [2024-11-13 15:54:17,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:54:17" (1/1) ... [2024-11-13 15:54:18,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:54:18,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2024-11-13 15:54:18,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:54:18,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:54:18,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-13 15:54:18,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [57] [2024-11-13 15:54:18,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [421] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1088] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1454] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1466] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1586] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1621] [2024-11-13 15:54:18,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3188] [2024-11-13 15:54:18,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3279] [2024-11-13 15:54:18,698 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2024-11-13 15:54:18,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:54:18,877 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:54:18,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18 WrapperNode [2024-11-13 15:54:18,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:54:18,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:54:18,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:54:18,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:54:18,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:18,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:18,981 INFO L138 Inliner]: procedures = 94, calls = 345, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 874 [2024-11-13 15:54:18,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:54:18,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:54:18,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:54:18,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:54:18,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:18,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,027 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-13 15:54:19,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,073 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:54:19,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:54:19,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:54:19,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:54:19,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (1/1) ... [2024-11-13 15:54:19,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:54:19,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:54:19,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:54:19,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:54:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:54:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-13 15:54:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-13 15:54:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-13 15:54:19,191 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-13 15:54:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-13 15:54:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-13 15:54:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-13 15:54:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-13 15:54:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-13 15:54:19,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-13 15:54:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-13 15:54:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-13 15:54:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-13 15:54:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-13 15:54:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-13 15:54:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-13 15:54:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-13 15:54:19,194 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-13 15:54:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-13 15:54:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-13 15:54:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-13 15:54:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 15:54:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-13 15:54:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-13 15:54:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-13 15:54:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-13 15:54:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-13 15:54:19,201 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-13 15:54:19,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:54:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:54:19,202 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-13 15:54:19,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-13 15:54:19,411 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:54:19,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:54:20,918 INFO L? ?]: Removed 450 outVars from TransFormulas that were not future-live. [2024-11-13 15:54:20,919 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:54:20,943 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:54:20,943 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:54:20,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:54:20 BoogieIcfgContainer [2024-11-13 15:54:20,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:54:20,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:54:20,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:54:20,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:54:20,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:54:17" (1/3) ... [2024-11-13 15:54:20,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd30103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:54:20, skipping insertion in model container [2024-11-13 15:54:20,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:54:18" (2/3) ... [2024-11-13 15:54:20,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd30103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:54:20, skipping insertion in model container [2024-11-13 15:54:20,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:54:20" (3/3) ... [2024-11-13 15:54:20,954 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.c [2024-11-13 15:54:20,967 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:54:20,970 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product22.cil.c that has 26 procedures, 572 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:54:21,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:54:21,068 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;@12cdcac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:54:21,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:54:21,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 447 states have (on average 1.691275167785235) internal successors, (756), 470 states have internal predecessors, (756), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-13 15:54:21,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 15:54:21,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:21,089 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] [2024-11-13 15:54:21,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:21,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:21,094 INFO L85 PathProgramCache]: Analyzing trace with hash 426434252, now seen corresponding path program 1 times [2024-11-13 15:54:21,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:21,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80040420] [2024-11-13 15:54:21,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:21,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:21,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:54:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:54:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:22,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:22,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80040420] [2024-11-13 15:54:22,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80040420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:22,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:22,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999625715] [2024-11-13 15:54:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:22,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:22,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:22,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:22,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:22,705 INFO L87 Difference]: Start difference. First operand has 572 states, 447 states have (on average 1.691275167785235) internal successors, (756), 470 states have internal predecessors, (756), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:29,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:29,559 INFO L93 Difference]: Finished difference Result 1287 states and 2173 transitions. [2024-11-13 15:54:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:29,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-11-13 15:54:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:29,594 INFO L225 Difference]: With dead ends: 1287 [2024-11-13 15:54:29,594 INFO L226 Difference]: Without dead ends: 727 [2024-11-13 15:54:29,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:54:29,613 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 1154 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:29,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 1170 Invalid, 2869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [273 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 15:54:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-13 15:54:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 564. [2024-11-13 15:54:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6870748299319729) internal successors, (744), 462 states have internal predecessors, (744), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:54:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 935 transitions. [2024-11-13 15:54:29,868 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 935 transitions. Word has length 60 [2024-11-13 15:54:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:29,870 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 935 transitions. [2024-11-13 15:54:29,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:29,871 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 935 transitions. [2024-11-13 15:54:29,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:54:29,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:29,879 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] [2024-11-13 15:54:29,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:54:29,879 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:29,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:29,880 INFO L85 PathProgramCache]: Analyzing trace with hash -912479167, now seen corresponding path program 1 times [2024-11-13 15:54:29,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:29,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504003751] [2024-11-13 15:54:29,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:29,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:54:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:30,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:30,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504003751] [2024-11-13 15:54:30,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504003751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:30,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:30,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:30,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262207883] [2024-11-13 15:54:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:30,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:30,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:30,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:30,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:30,765 INFO L87 Difference]: Start difference. First operand 564 states and 935 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:36,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:36,822 INFO L93 Difference]: Finished difference Result 1273 states and 2139 transitions. [2024-11-13 15:54:36,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-13 15:54:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:36,830 INFO L225 Difference]: With dead ends: 1273 [2024-11-13 15:54:36,830 INFO L226 Difference]: Without dead ends: 727 [2024-11-13 15:54:36,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:54:36,834 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 692 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:36,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1150 Invalid, 2875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 2749 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 15:54:36,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-13 15:54:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 564. [2024-11-13 15:54:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6848072562358276) internal successors, (743), 462 states have internal predecessors, (743), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:54:36,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 934 transitions. [2024-11-13 15:54:36,977 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 934 transitions. Word has length 63 [2024-11-13 15:54:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:36,977 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 934 transitions. [2024-11-13 15:54:36,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 934 transitions. [2024-11-13 15:54:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 15:54:36,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:36,980 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] [2024-11-13 15:54:36,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:54:36,980 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:36,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:36,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1966132092, now seen corresponding path program 1 times [2024-11-13 15:54:36,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:36,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631414039] [2024-11-13 15:54:36,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:36,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:54:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:37,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631414039] [2024-11-13 15:54:37,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631414039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:37,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:37,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043362208] [2024-11-13 15:54:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:37,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:37,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:37,721 INFO L87 Difference]: Start difference. First operand 564 states and 934 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:43,316 INFO L93 Difference]: Finished difference Result 1273 states and 2138 transitions. [2024-11-13 15:54:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:43,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-13 15:54:43,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:43,323 INFO L225 Difference]: With dead ends: 1273 [2024-11-13 15:54:43,323 INFO L226 Difference]: Without dead ends: 727 [2024-11-13 15:54:43,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:54:43,327 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1148 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:43,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1148 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:54:43,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-13 15:54:43,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 564. [2024-11-13 15:54:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6825396825396826) internal successors, (742), 462 states have internal predecessors, (742), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:54:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 933 transitions. [2024-11-13 15:54:43,435 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 933 transitions. Word has length 64 [2024-11-13 15:54:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:43,435 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 933 transitions. [2024-11-13 15:54:43,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 933 transitions. [2024-11-13 15:54:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:54:43,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:43,437 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:43,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:54:43,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:43,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:43,438 INFO L85 PathProgramCache]: Analyzing trace with hash 46607389, now seen corresponding path program 1 times [2024-11-13 15:54:43,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:43,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480484180] [2024-11-13 15:54:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:43,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:43,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:43,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:43,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:54:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:44,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 15:54:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:44,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:44,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:44,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:44,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480484180] [2024-11-13 15:54:44,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480484180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:44,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:44,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:44,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127542352] [2024-11-13 15:54:44,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:44,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:44,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:44,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:44,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:44,186 INFO L87 Difference]: Start difference. First operand 564 states and 933 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:49,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:49,812 INFO L93 Difference]: Finished difference Result 1273 states and 2137 transitions. [2024-11-13 15:54:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:49,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-13 15:54:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:49,819 INFO L225 Difference]: With dead ends: 1273 [2024-11-13 15:54:49,819 INFO L226 Difference]: Without dead ends: 727 [2024-11-13 15:54:49,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:54:49,823 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 1142 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 2861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:49,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 1157 Invalid, 2861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 15:54:49,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-13 15:54:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 564. [2024-11-13 15:54:49,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6802721088435375) internal successors, (741), 462 states have internal predecessors, (741), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:54:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 932 transitions. [2024-11-13 15:54:49,961 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 932 transitions. Word has length 65 [2024-11-13 15:54:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:49,961 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 932 transitions. [2024-11-13 15:54:49,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 932 transitions. [2024-11-13 15:54:49,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:54:49,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:49,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:49,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:54:49,963 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:49,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:49,963 INFO L85 PathProgramCache]: Analyzing trace with hash -291276776, now seen corresponding path program 1 times [2024-11-13 15:54:49,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:49,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91170041] [2024-11-13 15:54:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:49,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:54:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 15:54:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91170041] [2024-11-13 15:54:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91170041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:50,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:50,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382075017] [2024-11-13 15:54:50,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:50,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:50,625 INFO L87 Difference]: Start difference. First operand 564 states and 932 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:56,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:54:56,218 INFO L93 Difference]: Finished difference Result 1273 states and 2136 transitions. [2024-11-13 15:54:56,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:54:56,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-13 15:54:56,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:54:56,223 INFO L225 Difference]: With dead ends: 1273 [2024-11-13 15:54:56,223 INFO L226 Difference]: Without dead ends: 727 [2024-11-13 15:54:56,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:54:56,226 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 686 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:54:56,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1171 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 15:54:56,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-13 15:54:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 564. [2024-11-13 15:54:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6780045351473922) internal successors, (740), 462 states have internal predecessors, (740), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:54:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 931 transitions. [2024-11-13 15:54:56,327 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 931 transitions. Word has length 66 [2024-11-13 15:54:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:54:56,327 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 931 transitions. [2024-11-13 15:54:56,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:54:56,328 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 931 transitions. [2024-11-13 15:54:56,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:54:56,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:54:56,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:54:56,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:54:56,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:54:56,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:54:56,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1157055481, now seen corresponding path program 1 times [2024-11-13 15:54:56,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:54:56,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506845314] [2024-11-13 15:54:56,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:54:56,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:54:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:56,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:54:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:56,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:54:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:57,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 15:54:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:57,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:57,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:54:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:57,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:54:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:54:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:54:57,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:54:57,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506845314] [2024-11-13 15:54:57,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506845314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:54:57,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:54:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:54:57,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844737447] [2024-11-13 15:54:57,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:54:57,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:54:57,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:54:57,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:54:57,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:54:57,034 INFO L87 Difference]: Start difference. First operand 564 states and 931 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:02,284 INFO L93 Difference]: Finished difference Result 1245 states and 2077 transitions. [2024-11-13 15:55:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:55:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-13 15:55:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:02,289 INFO L225 Difference]: With dead ends: 1245 [2024-11-13 15:55:02,289 INFO L226 Difference]: Without dead ends: 739 [2024-11-13 15:55:02,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:55:02,292 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 747 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 2712 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 2841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:02,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1177 Invalid, 2841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2712 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 15:55:02,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-13 15:55:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 564. [2024-11-13 15:55:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 441 states have (on average 1.6666666666666667) internal successors, (735), 462 states have internal predecessors, (735), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:55:02,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 926 transitions. [2024-11-13 15:55:02,405 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 926 transitions. Word has length 67 [2024-11-13 15:55:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:02,406 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 926 transitions. [2024-11-13 15:55:02,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 926 transitions. [2024-11-13 15:55:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:55:02,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:02,408 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] [2024-11-13 15:55:02,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:55:02,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:02,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1334091724, now seen corresponding path program 1 times [2024-11-13 15:55:02,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:02,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486216464] [2024-11-13 15:55:02,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:02,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:02,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:02,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:02,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:55:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:03,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:03,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:03,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486216464] [2024-11-13 15:55:03,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486216464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:03,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:03,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:55:03,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960065948] [2024-11-13 15:55:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:03,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:55:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:03,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:55:03,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:55:03,181 INFO L87 Difference]: Start difference. First operand 564 states and 926 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:12,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:12,638 INFO L93 Difference]: Finished difference Result 1268 states and 2111 transitions. [2024-11-13 15:55:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 15:55:12,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-13 15:55:12,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:12,643 INFO L225 Difference]: With dead ends: 1268 [2024-11-13 15:55:12,644 INFO L226 Difference]: Without dead ends: 771 [2024-11-13 15:55:12,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:55:12,647 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 836 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 6437 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 6566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 6437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:12,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 2718 Invalid, 6566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [129 Valid, 6437 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-13 15:55:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-13 15:55:12,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 577. [2024-11-13 15:55:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 451 states have (on average 1.6629711751662972) internal successors, (750), 474 states have internal predecessors, (750), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 945 transitions. [2024-11-13 15:55:12,773 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 945 transitions. Word has length 68 [2024-11-13 15:55:12,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:12,773 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 945 transitions. [2024-11-13 15:55:12,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:12,773 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 945 transitions. [2024-11-13 15:55:12,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:55:12,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:12,776 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] [2024-11-13 15:55:12,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:55:12,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:12,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:12,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1827684979, now seen corresponding path program 1 times [2024-11-13 15:55:12,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936726118] [2024-11-13 15:55:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:12,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:55:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:13,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:13,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936726118] [2024-11-13 15:55:13,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936726118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:13,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:13,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:55:13,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327298635] [2024-11-13 15:55:13,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:13,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:55:13,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:13,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:55:13,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:55:13,419 INFO L87 Difference]: Start difference. First operand 577 states and 945 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:18,373 INFO L93 Difference]: Finished difference Result 1276 states and 2121 transitions. [2024-11-13 15:55:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:55:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-13 15:55:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:18,377 INFO L225 Difference]: With dead ends: 1276 [2024-11-13 15:55:18,377 INFO L226 Difference]: Without dead ends: 761 [2024-11-13 15:55:18,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:55:18,379 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1209 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:18,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 1148 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 15:55:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-13 15:55:18,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 577. [2024-11-13 15:55:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 451 states have (on average 1.6518847006651884) internal successors, (745), 474 states have internal predecessors, (745), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 940 transitions. [2024-11-13 15:55:18,509 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 940 transitions. Word has length 68 [2024-11-13 15:55:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:18,510 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 940 transitions. [2024-11-13 15:55:18,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 940 transitions. [2024-11-13 15:55:18,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:55:18,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:18,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:55:18,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:55:18,512 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:18,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:18,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1052934781, now seen corresponding path program 1 times [2024-11-13 15:55:18,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:18,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699639003] [2024-11-13 15:55:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:18,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:18,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:18,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:18,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 15:55:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:19,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:19,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:19,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699639003] [2024-11-13 15:55:19,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699639003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:19,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:55:19,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877275676] [2024-11-13 15:55:19,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:19,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:55:19,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:19,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:55:19,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:55:19,171 INFO L87 Difference]: Start difference. First operand 577 states and 940 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:24,136 INFO L93 Difference]: Finished difference Result 1276 states and 2116 transitions. [2024-11-13 15:55:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:55:24,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-13 15:55:24,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:24,142 INFO L225 Difference]: With dead ends: 1276 [2024-11-13 15:55:24,142 INFO L226 Difference]: Without dead ends: 761 [2024-11-13 15:55:24,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:55:24,145 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1202 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:24,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1175 Invalid, 2793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 15:55:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-13 15:55:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 577. [2024-11-13 15:55:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 451 states have (on average 1.6407982261640799) internal successors, (740), 474 states have internal predecessors, (740), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:24,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 935 transitions. [2024-11-13 15:55:24,270 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 935 transitions. Word has length 69 [2024-11-13 15:55:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:24,270 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 935 transitions. [2024-11-13 15:55:24,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:24,271 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 935 transitions. [2024-11-13 15:55:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:55:24,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:24,272 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] [2024-11-13 15:55:24,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:55:24,273 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2085649070, now seen corresponding path program 1 times [2024-11-13 15:55:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:24,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918507596] [2024-11-13 15:55:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:24,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:55:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:24,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:24,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918507596] [2024-11-13 15:55:24,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918507596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:24,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:24,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:55:24,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691122805] [2024-11-13 15:55:24,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:24,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:55:24,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:55:24,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:55:24,927 INFO L87 Difference]: Start difference. First operand 577 states and 935 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:29,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:29,796 INFO L93 Difference]: Finished difference Result 1276 states and 2111 transitions. [2024-11-13 15:55:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:55:29,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-13 15:55:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:29,801 INFO L225 Difference]: With dead ends: 1276 [2024-11-13 15:55:29,801 INFO L226 Difference]: Without dead ends: 761 [2024-11-13 15:55:29,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:55:29,804 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 1202 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:29,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1161 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 15:55:29,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-13 15:55:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 577. [2024-11-13 15:55:29,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 451 states have (on average 1.629711751662971) internal successors, (735), 474 states have internal predecessors, (735), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:29,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 930 transitions. [2024-11-13 15:55:29,957 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 930 transitions. Word has length 70 [2024-11-13 15:55:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 930 transitions. [2024-11-13 15:55:29,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 930 transitions. [2024-11-13 15:55:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:55:29,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:29,960 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] [2024-11-13 15:55:29,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:55:29,960 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:29,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1141264397, now seen corresponding path program 1 times [2024-11-13 15:55:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:29,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433851193] [2024-11-13 15:55:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:29,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:55:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:30,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:30,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433851193] [2024-11-13 15:55:30,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433851193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:30,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:30,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:55:30,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776422420] [2024-11-13 15:55:30,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:30,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:55:30,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:30,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:55:30,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:55:30,648 INFO L87 Difference]: Start difference. First operand 577 states and 930 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:37,893 INFO L93 Difference]: Finished difference Result 1260 states and 2077 transitions. [2024-11-13 15:55:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:55:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-11-13 15:55:37,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:37,898 INFO L225 Difference]: With dead ends: 1260 [2024-11-13 15:55:37,898 INFO L226 Difference]: Without dead ends: 757 [2024-11-13 15:55:37,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:55:37,903 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 731 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 4933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:37,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 2014 Invalid, 4933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 15:55:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-13 15:55:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 579. [2024-11-13 15:55:38,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 453 states have (on average 1.6247240618101546) internal successors, (736), 476 states have internal predecessors, (736), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:38,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 931 transitions. [2024-11-13 15:55:38,035 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 931 transitions. Word has length 70 [2024-11-13 15:55:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:38,035 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 931 transitions. [2024-11-13 15:55:38,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:38,035 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 931 transitions. [2024-11-13 15:55:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:55:38,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:38,037 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] [2024-11-13 15:55:38,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:55:38,037 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:38,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:38,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1453983458, now seen corresponding path program 1 times [2024-11-13 15:55:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:38,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199367377] [2024-11-13 15:55:38,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:38,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 15:55:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:38,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:38,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199367377] [2024-11-13 15:55:38,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199367377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:38,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:38,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:55:38,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868536867] [2024-11-13 15:55:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:38,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:55:38,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:55:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:55:38,671 INFO L87 Difference]: Start difference. First operand 579 states and 931 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:43,817 INFO L93 Difference]: Finished difference Result 1282 states and 2108 transitions. [2024-11-13 15:55:43,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:55:43,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-13 15:55:43,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:43,822 INFO L225 Difference]: With dead ends: 1282 [2024-11-13 15:55:43,822 INFO L226 Difference]: Without dead ends: 765 [2024-11-13 15:55:43,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:55:43,823 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 742 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 2609 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 2609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:43,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1158 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 2609 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:55:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-13 15:55:43,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 579. [2024-11-13 15:55:43,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 453 states have (on average 1.6136865342163356) internal successors, (731), 476 states have internal predecessors, (731), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 926 transitions. [2024-11-13 15:55:43,971 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 926 transitions. Word has length 71 [2024-11-13 15:55:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:43,972 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 926 transitions. [2024-11-13 15:55:43,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 926 transitions. [2024-11-13 15:55:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 15:55:43,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:43,974 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] [2024-11-13 15:55:43,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:55:43,974 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:43,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:43,974 INFO L85 PathProgramCache]: Analyzing trace with hash 969325535, now seen corresponding path program 1 times [2024-11-13 15:55:43,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:43,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929906464] [2024-11-13 15:55:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 15:55:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:44,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:44,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:44,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929906464] [2024-11-13 15:55:44,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929906464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:44,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:44,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:55:44,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670464717] [2024-11-13 15:55:44,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:44,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:55:44,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:44,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:55:44,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:55:44,667 INFO L87 Difference]: Start difference. First operand 579 states and 926 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:51,617 INFO L93 Difference]: Finished difference Result 1257 states and 2064 transitions. [2024-11-13 15:55:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:55:51,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-13 15:55:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:51,621 INFO L225 Difference]: With dead ends: 1257 [2024-11-13 15:55:51,622 INFO L226 Difference]: Without dead ends: 757 [2024-11-13 15:55:51,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:55:51,623 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1179 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 4667 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 4933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 4667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:51,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2046 Invalid, 4933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [266 Valid, 4667 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:55:51,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-13 15:55:51,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 579. [2024-11-13 15:55:51,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 453 states have (on average 1.6114790286975718) internal successors, (730), 476 states have internal predecessors, (730), 99 states have call successors, (99), 25 states have call predecessors, (99), 26 states have return successors, (96), 91 states have call predecessors, (96), 94 states have call successors, (96) [2024-11-13 15:55:51,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 925 transitions. [2024-11-13 15:55:51,720 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 925 transitions. Word has length 71 [2024-11-13 15:55:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:51,721 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 925 transitions. [2024-11-13 15:55:51,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:55:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 925 transitions. [2024-11-13 15:55:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 15:55:51,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:51,723 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] [2024-11-13 15:55:51,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:55:51,723 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:51,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1564926231, now seen corresponding path program 1 times [2024-11-13 15:55:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579107460] [2024-11-13 15:55:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:51,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:51,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:51,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:52,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:55:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:52,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:52,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:52,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:52,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:52,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579107460] [2024-11-13 15:55:52,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579107460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:52,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:52,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:55:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003762023] [2024-11-13 15:55:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:52,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:55:52,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:55:52,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:55:52,373 INFO L87 Difference]: Start difference. First operand 579 states and 925 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:55:58,042 INFO L93 Difference]: Finished difference Result 1306 states and 2125 transitions. [2024-11-13 15:55:58,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:55:58,043 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-13 15:55:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:55:58,046 INFO L225 Difference]: With dead ends: 1306 [2024-11-13 15:55:58,046 INFO L226 Difference]: Without dead ends: 700 [2024-11-13 15:55:58,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:55:58,048 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 683 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:55:58,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1135 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 15:55:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-13 15:55:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 537. [2024-11-13 15:55:58,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 414 states have (on average 1.6352657004830917) internal successors, (677), 435 states have internal predecessors, (677), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 90 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 15:55:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 868 transitions. [2024-11-13 15:55:58,189 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 868 transitions. Word has length 72 [2024-11-13 15:55:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:55:58,190 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 868 transitions. [2024-11-13 15:55:58,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:55:58,190 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 868 transitions. [2024-11-13 15:55:58,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 15:55:58,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:55:58,192 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] [2024-11-13 15:55:58,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:55:58,193 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:55:58,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:55:58,193 INFO L85 PathProgramCache]: Analyzing trace with hash 721625612, now seen corresponding path program 1 times [2024-11-13 15:55:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:55:58,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922499713] [2024-11-13 15:55:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:55:58,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:55:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:58,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:55:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:58,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:58,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:55:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:55:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:59,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:59,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:55:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:59,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:55:59,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:55:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:55:59,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:55:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922499713] [2024-11-13 15:55:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922499713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:55:59,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:55:59,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:55:59,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602441995] [2024-11-13 15:55:59,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:55:59,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:55:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:55:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:55:59,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:55:59,079 INFO L87 Difference]: Start difference. First operand 537 states and 868 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:56:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:08,855 INFO L93 Difference]: Finished difference Result 2027 states and 3422 transitions. [2024-11-13 15:56:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:56:08,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 74 [2024-11-13 15:56:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:08,866 INFO L225 Difference]: With dead ends: 2027 [2024-11-13 15:56:08,866 INFO L226 Difference]: Without dead ends: 1535 [2024-11-13 15:56:08,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:56:08,869 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 3522 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:08,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 1514 Invalid, 3822 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [925 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-13 15:56:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-13 15:56:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1055. [2024-11-13 15:56:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 820 states have (on average 1.6560975609756097) internal successors, (1358), 850 states have internal predecessors, (1358), 190 states have call successors, (190), 43 states have call predecessors, (190), 44 states have return successors, (192), 174 states have call predecessors, (192), 185 states have call successors, (192) [2024-11-13 15:56:09,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1740 transitions. [2024-11-13 15:56:09,112 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1740 transitions. Word has length 74 [2024-11-13 15:56:09,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:09,112 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1740 transitions. [2024-11-13 15:56:09,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-13 15:56:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1740 transitions. [2024-11-13 15:56:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 15:56:09,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:09,117 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:09,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:56:09,117 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:09,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash 934610502, now seen corresponding path program 1 times [2024-11-13 15:56:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:09,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855554934] [2024-11-13 15:56:09,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:09,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:09,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:09,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:09,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:56:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:56:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:56:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:56:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:56:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:56:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:56:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 15:56:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855554934] [2024-11-13 15:56:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855554934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:10,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:10,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:56:10,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745486130] [2024-11-13 15:56:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:10,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:56:10,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:10,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:56:10,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:56:10,791 INFO L87 Difference]: Start difference. First operand 1055 states and 1740 transitions. Second operand has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:23,915 INFO L93 Difference]: Finished difference Result 3113 states and 5273 transitions. [2024-11-13 15:56:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 15:56:23,916 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 112 [2024-11-13 15:56:23,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:23,929 INFO L225 Difference]: With dead ends: 3113 [2024-11-13 15:56:23,929 INFO L226 Difference]: Without dead ends: 2104 [2024-11-13 15:56:23,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2024-11-13 15:56:23,935 INFO L432 NwaCegarLoop]: 403 mSDtfsCounter, 2301 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 7685 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 8502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 7685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:23,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 3692 Invalid, 8502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [817 Valid, 7685 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2024-11-13 15:56:23,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2024-11-13 15:56:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 1505. [2024-11-13 15:56:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1159 states have (on average 1.6177739430543572) internal successors, (1875), 1193 states have internal predecessors, (1875), 274 states have call successors, (274), 59 states have call predecessors, (274), 71 states have return successors, (320), 263 states have call predecessors, (320), 269 states have call successors, (320) [2024-11-13 15:56:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2469 transitions. [2024-11-13 15:56:24,313 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2469 transitions. Word has length 112 [2024-11-13 15:56:24,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:24,314 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2469 transitions. [2024-11-13 15:56:24,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:24,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2469 transitions. [2024-11-13 15:56:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 15:56:24,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:24,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:24,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:56:24,318 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:24,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:24,318 INFO L85 PathProgramCache]: Analyzing trace with hash 837292804, now seen corresponding path program 1 times [2024-11-13 15:56:24,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:24,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028193002] [2024-11-13 15:56:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:24,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:24,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:24,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:24,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:56:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:56:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:56:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:56:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:56:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 15:56:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:56:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:25,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:25,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028193002] [2024-11-13 15:56:25,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028193002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:25,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:25,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:56:25,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082655895] [2024-11-13 15:56:25,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:25,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:56:25,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:56:25,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:56:25,927 INFO L87 Difference]: Start difference. First operand 1505 states and 2469 transitions. Second operand has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:36,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:36,274 INFO L93 Difference]: Finished difference Result 3485 states and 5849 transitions. [2024-11-13 15:56:36,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 15:56:36,276 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2024-11-13 15:56:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:36,290 INFO L225 Difference]: With dead ends: 3485 [2024-11-13 15:56:36,291 INFO L226 Difference]: Without dead ends: 2027 [2024-11-13 15:56:36,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:56:36,299 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 2876 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 5203 mSolverCounterSat, 969 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2876 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 6172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 969 IncrementalHoareTripleChecker+Valid, 5203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:36,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2876 Valid, 2721 Invalid, 6172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [969 Valid, 5203 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-13 15:56:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-13 15:56:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1507. [2024-11-13 15:56:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1161 states have (on average 1.6167097329888027) internal successors, (1877), 1193 states have internal predecessors, (1877), 274 states have call successors, (274), 59 states have call predecessors, (274), 71 states have return successors, (320), 265 states have call predecessors, (320), 269 states have call successors, (320) [2024-11-13 15:56:36,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2471 transitions. [2024-11-13 15:56:36,755 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2471 transitions. Word has length 114 [2024-11-13 15:56:36,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:36,756 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 2471 transitions. [2024-11-13 15:56:36,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 6 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:36,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2471 transitions. [2024-11-13 15:56:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 15:56:36,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:36,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:36,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:56:36,760 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:36,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1033695652, now seen corresponding path program 1 times [2024-11-13 15:56:36,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:36,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066830500] [2024-11-13 15:56:36,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:36,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:56:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:56:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:37,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:56:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:56:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:56:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 15:56:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:56:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:38,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:38,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066830500] [2024-11-13 15:56:38,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066830500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:38,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:38,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:56:38,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968652816] [2024-11-13 15:56:38,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:38,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:56:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:56:38,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:56:38,253 INFO L87 Difference]: Start difference. First operand 1507 states and 2471 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:56:46,661 INFO L93 Difference]: Finished difference Result 3495 states and 5877 transitions. [2024-11-13 15:56:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:56:46,662 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2024-11-13 15:56:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:56:46,676 INFO L225 Difference]: With dead ends: 3495 [2024-11-13 15:56:46,676 INFO L226 Difference]: Without dead ends: 2035 [2024-11-13 15:56:46,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2024-11-13 15:56:46,683 INFO L432 NwaCegarLoop]: 390 mSDtfsCounter, 2666 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:56:46,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 1618 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 3016 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-13 15:56:46,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2024-11-13 15:56:47,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1513. [2024-11-13 15:56:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1167 states have (on average 1.6152527849185947) internal successors, (1885), 1199 states have internal predecessors, (1885), 274 states have call successors, (274), 59 states have call predecessors, (274), 71 states have return successors, (320), 265 states have call predecessors, (320), 269 states have call successors, (320) [2024-11-13 15:56:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2479 transitions. [2024-11-13 15:56:47,301 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2479 transitions. Word has length 114 [2024-11-13 15:56:47,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:56:47,302 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 2479 transitions. [2024-11-13 15:56:47,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:56:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2479 transitions. [2024-11-13 15:56:47,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-13 15:56:47,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:56:47,307 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:56:47,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:56:47,307 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:56:47,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:47,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2073047214, now seen corresponding path program 1 times [2024-11-13 15:56:47,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:47,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541171904] [2024-11-13 15:56:47,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:47,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:47,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:56:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:47,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:47,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:56:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:56:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:56:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:56:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:56:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 15:56:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:56:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:56:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:56:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:48,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:48,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:48,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541171904] [2024-11-13 15:56:48,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541171904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:48,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:48,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:56:48,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323348629] [2024-11-13 15:56:48,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:48,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:56:48,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:56:48,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:56:48,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:56:48,763 INFO L87 Difference]: Start difference. First operand 1513 states and 2479 transitions. Second operand has 14 states, 13 states have (on average 7.0) internal successors, (91), 9 states have internal predecessors, (91), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:57:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:11,964 INFO L93 Difference]: Finished difference Result 5111 states and 8932 transitions. [2024-11-13 15:57:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 15:57:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.0) internal successors, (91), 9 states have internal predecessors, (91), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2024-11-13 15:57:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:11,988 INFO L225 Difference]: With dead ends: 5111 [2024-11-13 15:57:11,988 INFO L226 Difference]: Without dead ends: 3639 [2024-11-13 15:57:11,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=496, Invalid=1574, Unknown=0, NotChecked=0, Total=2070 [2024-11-13 15:57:12,000 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 5447 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 8021 mSolverCounterSat, 2025 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5497 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 10046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2025 IncrementalHoareTripleChecker+Valid, 8021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:12,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5497 Valid, 3202 Invalid, 10046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2025 Valid, 8021 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-11-13 15:57:12,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2024-11-13 15:57:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 2684. [2024-11-13 15:57:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 2072 states have (on average 1.6047297297297298) internal successors, (3325), 2131 states have internal predecessors, (3325), 482 states have call successors, (482), 107 states have call predecessors, (482), 129 states have return successors, (611), 467 states have call predecessors, (611), 477 states have call successors, (611) [2024-11-13 15:57:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 4418 transitions. [2024-11-13 15:57:12,782 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 4418 transitions. Word has length 116 [2024-11-13 15:57:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:12,782 INFO L471 AbstractCegarLoop]: Abstraction has 2684 states and 4418 transitions. [2024-11-13 15:57:12,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.0) internal successors, (91), 9 states have internal predecessors, (91), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-13 15:57:12,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 4418 transitions. [2024-11-13 15:57:12,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 15:57:12,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:12,786 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:12,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:57:12,787 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:57:12,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:12,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1741277376, now seen corresponding path program 1 times [2024-11-13 15:57:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:12,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572945947] [2024-11-13 15:57:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:12,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:57:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:57:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:13,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:57:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:57:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:57:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:57:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:57:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:57:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 15:57:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:57:14,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:14,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572945947] [2024-11-13 15:57:14,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572945947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:14,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:14,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-13 15:57:14,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337677495] [2024-11-13 15:57:14,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:14,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 15:57:14,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:14,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:57:14,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:57:14,323 INFO L87 Difference]: Start difference. First operand 2684 states and 4418 transitions. Second operand has 17 states, 15 states have (on average 6.066666666666666) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 15:57:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:32,116 INFO L93 Difference]: Finished difference Result 6279 states and 10638 transitions. [2024-11-13 15:57:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 15:57:32,117 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.066666666666666) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 120 [2024-11-13 15:57:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:32,141 INFO L225 Difference]: With dead ends: 6279 [2024-11-13 15:57:32,141 INFO L226 Difference]: Without dead ends: 3640 [2024-11-13 15:57:32,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 15:57:32,154 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 3349 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 10638 mSolverCounterSat, 1252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 11890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 10638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:32,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 4334 Invalid, 11890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1252 Valid, 10638 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-13 15:57:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3640 states. [2024-11-13 15:57:33,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3640 to 2684. [2024-11-13 15:57:33,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 2076 states have (on average 1.5997109826589595) internal successors, (3321), 2127 states have internal predecessors, (3321), 478 states have call successors, (478), 107 states have call predecessors, (478), 129 states have return successors, (585), 471 states have call predecessors, (585), 473 states have call successors, (585) [2024-11-13 15:57:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 4384 transitions. [2024-11-13 15:57:33,218 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 4384 transitions. Word has length 120 [2024-11-13 15:57:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:33,218 INFO L471 AbstractCegarLoop]: Abstraction has 2684 states and 4384 transitions. [2024-11-13 15:57:33,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.066666666666666) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-13 15:57:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 4384 transitions. [2024-11-13 15:57:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 15:57:33,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:33,221 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:33,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:57:33,221 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:57:33,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash -827194086, now seen corresponding path program 1 times [2024-11-13 15:57:33,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:33,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738013208] [2024-11-13 15:57:33,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:33,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:57:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:57:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:33,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:57:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:57:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:57:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-13 15:57:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:57:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 15:57:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 15:57:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:34,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:34,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738013208] [2024-11-13 15:57:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738013208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051870474] [2024-11-13 15:57:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:34,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:34,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:34,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:34,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:57:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:35,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:35,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:35,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:35,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051870474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:35,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:35,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [22] total 25 [2024-11-13 15:57:35,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981105178] [2024-11-13 15:57:35,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:35,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:57:35,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:35,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:57:35,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2024-11-13 15:57:35,401 INFO L87 Difference]: Start difference. First operand 2684 states and 4384 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 15:57:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:36,355 INFO L93 Difference]: Finished difference Result 5677 states and 9337 transitions. [2024-11-13 15:57:36,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:57:36,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 128 [2024-11-13 15:57:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:36,375 INFO L225 Difference]: With dead ends: 5677 [2024-11-13 15:57:36,375 INFO L226 Difference]: Without dead ends: 3008 [2024-11-13 15:57:36,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2024-11-13 15:57:36,386 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 339 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:36,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 4276 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:57:36,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2024-11-13 15:57:37,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2960. [2024-11-13 15:57:37,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 2308 states have (on average 1.6096187175043328) internal successors, (3715), 2367 states have internal predecessors, (3715), 510 states have call successors, (510), 111 states have call predecessors, (510), 141 states have return successors, (623), 503 states have call predecessors, (623), 505 states have call successors, (623) [2024-11-13 15:57:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 4848 transitions. [2024-11-13 15:57:37,332 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 4848 transitions. Word has length 128 [2024-11-13 15:57:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:37,332 INFO L471 AbstractCegarLoop]: Abstraction has 2960 states and 4848 transitions. [2024-11-13 15:57:37,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 4 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 15:57:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 4848 transitions. [2024-11-13 15:57:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 15:57:37,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:37,336 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:37,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:57:37,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:37,537 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:57:37,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:37,538 INFO L85 PathProgramCache]: Analyzing trace with hash 600980098, now seen corresponding path program 1 times [2024-11-13 15:57:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:37,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456625548] [2024-11-13 15:57:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:37,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:37,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:37,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:37,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:57:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:57:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:57:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:57:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:57:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:57:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:57:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 15:57:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 15:57:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:38,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:57:38,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:38,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456625548] [2024-11-13 15:57:38,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456625548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:38,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:38,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 15:57:38,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229973318] [2024-11-13 15:57:38,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:38,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:57:38,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:38,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:57:38,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:57:38,987 INFO L87 Difference]: Start difference. First operand 2960 states and 4848 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-13 15:58:15,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:15,100 INFO L93 Difference]: Finished difference Result 14483 states and 25194 transitions. [2024-11-13 15:58:15,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-13 15:58:15,101 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 129 [2024-11-13 15:58:15,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:15,186 INFO L225 Difference]: With dead ends: 14483 [2024-11-13 15:58:15,186 INFO L226 Difference]: Without dead ends: 11570 [2024-11-13 15:58:15,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1340 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=746, Invalid=3414, Unknown=0, NotChecked=0, Total=4160 [2024-11-13 15:58:15,206 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 8275 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 8659 mSolverCounterSat, 2529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8351 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 11188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2529 IncrementalHoareTripleChecker+Valid, 8659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:15,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8351 Valid, 4504 Invalid, 11188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2529 Valid, 8659 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2024-11-13 15:58:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2024-11-13 15:58:17,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 9242. [2024-11-13 15:58:17,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9242 states, 7185 states have (on average 1.5980514961725818) internal successors, (11482), 7373 states have internal predecessors, (11482), 1577 states have call successors, (1577), 353 states have call predecessors, (1577), 479 states have return successors, (2292), 1603 states have call predecessors, (2292), 1572 states have call successors, (2292) [2024-11-13 15:58:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9242 states to 9242 states and 15351 transitions. [2024-11-13 15:58:17,919 INFO L78 Accepts]: Start accepts. Automaton has 9242 states and 15351 transitions. Word has length 129 [2024-11-13 15:58:17,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:17,920 INFO L471 AbstractCegarLoop]: Abstraction has 9242 states and 15351 transitions. [2024-11-13 15:58:17,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 10 states have internal predecessors, (98), 6 states have call successors, (15), 6 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-13 15:58:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 9242 states and 15351 transitions. [2024-11-13 15:58:17,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 15:58:17,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:17,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:17,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 15:58:17,925 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:17,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1437627948, now seen corresponding path program 1 times [2024-11-13 15:58:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:17,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695047753] [2024-11-13 15:58:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:17,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:58:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:18,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:58:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:58:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:58:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 15:58:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:58:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 15:58:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:58:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 15:58:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:58:19,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:19,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695047753] [2024-11-13 15:58:19,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695047753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:19,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:19,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:58:19,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611944603] [2024-11-13 15:58:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:19,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:58:19,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:19,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:58:19,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:58:19,379 INFO L87 Difference]: Start difference. First operand 9242 states and 15351 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-13 15:59:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:13,380 INFO L93 Difference]: Finished difference Result 50302 states and 90242 transitions. [2024-11-13 15:59:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-13 15:59:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 135 [2024-11-13 15:59:13,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:13,690 INFO L225 Difference]: With dead ends: 50302 [2024-11-13 15:59:13,691 INFO L226 Difference]: Without dead ends: 41108 [2024-11-13 15:59:13,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=1056, Invalid=4200, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 15:59:13,782 INFO L432 NwaCegarLoop]: 1053 mSDtfsCounter, 8248 mSDsluCounter, 4981 mSDsCounter, 0 mSdLazyCounter, 11536 mSolverCounterSat, 2333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8292 SdHoareTripleChecker+Valid, 6034 SdHoareTripleChecker+Invalid, 13869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2333 IncrementalHoareTripleChecker+Valid, 11536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:13,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8292 Valid, 6034 Invalid, 13869 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2333 Valid, 11536 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time] [2024-11-13 15:59:13,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41108 states. [2024-11-13 15:59:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41108 to 34718. [2024-11-13 15:59:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34718 states, 27335 states have (on average 1.5835010060362174) internal successors, (43285), 27869 states have internal predecessors, (43285), 5456 states have call successors, (5456), 1357 states have call predecessors, (5456), 1926 states have return successors, (9603), 5755 states have call predecessors, (9603), 5451 states have call successors, (9603) [2024-11-13 15:59:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34718 states to 34718 states and 58344 transitions. [2024-11-13 15:59:24,854 INFO L78 Accepts]: Start accepts. Automaton has 34718 states and 58344 transitions. Word has length 135 [2024-11-13 15:59:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:24,855 INFO L471 AbstractCegarLoop]: Abstraction has 34718 states and 58344 transitions. [2024-11-13 15:59:24,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-13 15:59:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 34718 states and 58344 transitions. [2024-11-13 15:59:24,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 15:59:24,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:24,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:59:24,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 15:59:24,860 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:24,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:24,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1198658146, now seen corresponding path program 1 times [2024-11-13 15:59:24,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:24,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952834346] [2024-11-13 15:59:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:24,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:59:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:59:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:59:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:59:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 15:59:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:59:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 15:59:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:59:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 15:59:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:59:26,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:26,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952834346] [2024-11-13 15:59:26,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952834346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:59:26,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093327232] [2024-11-13 15:59:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:26,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:59:26,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:59:26,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:59:26,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91781dfe-6163-47de-b66e-808b769539ce/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:59:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:26,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:59:26,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:59:27,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:59:27,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:59:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093327232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:27,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:59:27,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [21] total 24 [2024-11-13 15:59:27,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577768859] [2024-11-13 15:59:27,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:27,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:59:27,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:27,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:59:27,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:59:27,208 INFO L87 Difference]: Start difference. First operand 34718 states and 58344 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 15:59:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:38,429 INFO L93 Difference]: Finished difference Result 34942 states and 58751 transitions. [2024-11-13 15:59:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:59:38,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 140 [2024-11-13 15:59:38,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:38,651 INFO L225 Difference]: With dead ends: 34942 [2024-11-13 15:59:38,651 INFO L226 Difference]: Without dead ends: 34927 [2024-11-13 15:59:38,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:59:38,686 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 819 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:38,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2198 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:59:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34927 states.