./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product26.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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/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 d5d3c0f581b3d52ccfb3e43d6fb6458a66cd40c307750c0d7336040b60b78e76 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:57:42,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:57:42,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:57:42,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:57:42,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:57:43,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:57:43,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:57:43,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:57:43,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:57:43,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:57:43,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:57:43,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:57:43,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:57:43,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:57:43,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:57:43,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:57:43,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:57:43,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:57:43,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:57:43,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:57:43,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:57:43,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:57:43,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:57:43,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:57:43,028 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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/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 -> d5d3c0f581b3d52ccfb3e43d6fb6458a66cd40c307750c0d7336040b60b78e76 [2024-11-13 15:57:43,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:57:43,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:57:43,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:57:43,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:57:43,349 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:57:43,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/elevator_spec9_product26.cil.c Unable to find full path for "g++" [2024-11-13 15:57:45,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:57:45,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:57:45,903 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/sv-benchmarks/c/product-lines/elevator_spec9_product26.cil.c [2024-11-13 15:57:45,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/data/f84f0ac77/f9afd0fc7a6e4f839bb3616694ebc038/FLAG19f95cced [2024-11-13 15:57:45,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/data/f84f0ac77/f9afd0fc7a6e4f839bb3616694ebc038 [2024-11-13 15:57:45,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:57:45,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:57:45,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:57:45,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:57:45,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:57:45,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:57:45" (1/1) ... [2024-11-13 15:57:45,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef40a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:45, skipping insertion in model container [2024-11-13 15:57:45,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:57:45" (1/1) ... [2024-11-13 15:57:46,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:57:46,525 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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/sv-benchmarks/c/product-lines/elevator_spec9_product26.cil.c[46529,46542] [2024-11-13 15:57:46,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:57:46,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:57:46,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-13 15:57:46,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2024-11-13 15:57:46,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [428] [2024-11-13 15:57:46,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [594] [2024-11-13 15:57:46,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2119] [2024-11-13 15:57:46,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2128] [2024-11-13 15:57:46,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2790] [2024-11-13 15:57:46,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3145] [2024-11-13 15:57:46,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3236] [2024-11-13 15:57:46,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3271] [2024-11-13 15:57:46,891 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_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/sv-benchmarks/c/product-lines/elevator_spec9_product26.cil.c[46529,46542] [2024-11-13 15:57:46,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:57:46,974 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:57:46,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46 WrapperNode [2024-11-13 15:57:46,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:57:46,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:57:46,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:57:46,976 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:57:46,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,071 INFO L138 Inliner]: procedures = 93, calls = 337, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 812 [2024-11-13 15:57:47,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:57:47,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:57:47,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:57:47,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:57:47,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,116 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 15:57:47,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:57:47,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:57:47,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:57:47,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:57:47,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (1/1) ... [2024-11-13 15:57:47,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:57:47,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:47,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:57:47,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:57:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:57:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-13 15:57:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-13 15:57:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-13 15:57:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-13 15:57:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-13 15:57:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-13 15:57:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-13 15:57:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-13 15:57:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-13 15:57:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-13 15:57:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-13 15:57:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-13 15:57:47,311 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-13 15:57:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2024-11-13 15:57:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-13 15:57:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-13 15:57:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-13 15:57:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-13 15:57:47,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:57:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-13 15:57:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-13 15:57:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-13 15:57:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-13 15:57:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:57:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:57:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-13 15:57:47,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-13 15:57:47,544 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:57:47,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:57:49,278 INFO L? ?]: Removed 434 outVars from TransFormulas that were not future-live. [2024-11-13 15:57:49,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:57:49,322 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:57:49,322 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:57:49,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:57:49 BoogieIcfgContainer [2024-11-13 15:57:49,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:57:49,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:57:49,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:57:49,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:57:49,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:57:45" (1/3) ... [2024-11-13 15:57:49,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c333b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:57:49, skipping insertion in model container [2024-11-13 15:57:49,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:46" (2/3) ... [2024-11-13 15:57:49,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c333b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:57:49, skipping insertion in model container [2024-11-13 15:57:49,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:57:49" (3/3) ... [2024-11-13 15:57:49,341 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product26.cil.c [2024-11-13 15:57:49,366 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:57:49,372 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product26.cil.c that has 24 procedures, 545 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:57:49,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:57:49,516 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;@76de5195, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:57:49,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:57:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 431 states have (on average 1.7076566125290022) internal successors, (736), 454 states have internal predecessors, (736), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (89), 82 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-13 15:57:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 15:57:49,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:49,549 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] [2024-11-13 15:57:49,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:57:49,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:49,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1959523385, now seen corresponding path program 1 times [2024-11-13 15:57:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:49,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502343983] [2024-11-13 15:57:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-13 15:57:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:57:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:57:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,500 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 15:57:51,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502343983] [2024-11-13 15:57:51,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502343983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:51,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:51,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:57:51,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945738533] [2024-11-13 15:57:51,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:51,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:57:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:57:51,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:57:51,543 INFO L87 Difference]: Start difference. First operand has 545 states, 431 states have (on average 1.7076566125290022) internal successors, (736), 454 states have internal predecessors, (736), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (89), 82 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 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 15:57:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:57:58,891 INFO L93 Difference]: Finished difference Result 1223 states and 2080 transitions. [2024-11-13 15:57:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:57:58,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 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 58 [2024-11-13 15:57:58,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:57:58,929 INFO L225 Difference]: With dead ends: 1223 [2024-11-13 15:57:58,929 INFO L226 Difference]: Without dead ends: 690 [2024-11-13 15:57:58,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:57:58,947 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 672 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:57:58,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1157 Invalid, 2786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-13 15:57:58,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-13 15:57:59,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 537. [2024-11-13 15:57:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 425 states have (on average 1.703529411764706) internal successors, (724), 446 states have internal predecessors, (724), 89 states have call successors, (89), 23 states have call predecessors, (89), 22 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 15:57:59,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 897 transitions. [2024-11-13 15:57:59,242 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 897 transitions. Word has length 58 [2024-11-13 15:57:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:57:59,243 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 897 transitions. [2024-11-13 15:57:59,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 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 15:57:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 897 transitions. [2024-11-13 15:57:59,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 15:57:59,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:57:59,248 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] [2024-11-13 15:57:59,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:57:59,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:57:59,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1021054095, now seen corresponding path program 1 times [2024-11-13 15:57:59,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:59,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74293938] [2024-11-13 15:57:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:59,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:57:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:57:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 15:58:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,163 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 15:58:00,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:00,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74293938] [2024-11-13 15:58:00,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74293938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:00,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:00,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:00,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101500236] [2024-11-13 15:58:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:00,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:00,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:00,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:00,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:00,167 INFO L87 Difference]: Start difference. First operand 537 states and 897 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 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 15:58:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:06,891 INFO L93 Difference]: Finished difference Result 1209 states and 2046 transitions. [2024-11-13 15:58:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:58:06,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 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 61 [2024-11-13 15:58:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:06,900 INFO L225 Difference]: With dead ends: 1209 [2024-11-13 15:58:06,900 INFO L226 Difference]: Without dead ends: 690 [2024-11-13 15:58:06,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:58:06,905 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 669 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 2682 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:06,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 1108 Invalid, 2794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2682 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-13 15:58:06,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-13 15:58:07,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 537. [2024-11-13 15:58:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 425 states have (on average 1.7011764705882353) internal successors, (723), 446 states have internal predecessors, (723), 89 states have call successors, (89), 23 states have call predecessors, (89), 22 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 15:58:07,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 896 transitions. [2024-11-13 15:58:07,040 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 896 transitions. Word has length 61 [2024-11-13 15:58:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:07,040 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 896 transitions. [2024-11-13 15:58:07,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 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 15:58:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 896 transitions. [2024-11-13 15:58:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:58:07,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:07,044 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] [2024-11-13 15:58:07,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:58:07,044 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:07,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:07,044 INFO L85 PathProgramCache]: Analyzing trace with hash -824784279, now seen corresponding path program 1 times [2024-11-13 15:58:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645908985] [2024-11-13 15:58:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:07,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-13 15:58:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:58:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:07,900 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 15:58:07,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:07,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645908985] [2024-11-13 15:58:07,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645908985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:07,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:07,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:07,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715090912] [2024-11-13 15:58:07,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:07,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:07,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:07,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:07,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:07,903 INFO L87 Difference]: Start difference. First operand 537 states and 896 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 15:58:13,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:13,679 INFO L93 Difference]: Finished difference Result 1209 states and 2045 transitions. [2024-11-13 15:58:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:58:13,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 62 [2024-11-13 15:58:13,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:13,686 INFO L225 Difference]: With dead ends: 1209 [2024-11-13 15:58:13,686 INFO L226 Difference]: Without dead ends: 690 [2024-11-13 15:58:13,689 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 15:58:13,690 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1109 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:13,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1103 Invalid, 2750 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [237 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 15:58:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-13 15:58:13,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 537. [2024-11-13 15:58:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 425 states have (on average 1.6988235294117646) internal successors, (722), 446 states have internal predecessors, (722), 89 states have call successors, (89), 23 states have call predecessors, (89), 22 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 15:58:13,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 895 transitions. [2024-11-13 15:58:13,792 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 895 transitions. Word has length 62 [2024-11-13 15:58:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:13,792 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 895 transitions. [2024-11-13 15:58:13,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 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 15:58:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 895 transitions. [2024-11-13 15:58:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:58:13,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:13,798 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 15:58:13,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:58:13,798 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:13,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash 547969517, now seen corresponding path program 1 times [2024-11-13 15:58:13,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:13,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488894281] [2024-11-13 15:58:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:13,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 15:58:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:14,616 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 15:58:14,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488894281] [2024-11-13 15:58:14,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488894281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:14,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:14,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:14,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933447311] [2024-11-13 15:58:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:14,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:14,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:14,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:14,617 INFO L87 Difference]: Start difference. First operand 537 states and 895 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 15:58:21,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:21,028 INFO L93 Difference]: Finished difference Result 1209 states and 2044 transitions. [2024-11-13 15:58:21,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:58:21,029 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 15:58:21,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:21,034 INFO L225 Difference]: With dead ends: 1209 [2024-11-13 15:58:21,035 INFO L226 Difference]: Without dead ends: 690 [2024-11-13 15:58:21,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:58:21,038 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 666 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 2665 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:21,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1117 Invalid, 2777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2665 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 15:58:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-13 15:58:21,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 537. [2024-11-13 15:58:21,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 425 states have (on average 1.6964705882352942) internal successors, (721), 446 states have internal predecessors, (721), 89 states have call successors, (89), 23 states have call predecessors, (89), 22 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 15:58:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 894 transitions. [2024-11-13 15:58:21,128 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 894 transitions. Word has length 63 [2024-11-13 15:58:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:21,129 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 894 transitions. [2024-11-13 15:58:21,129 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 15:58:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 894 transitions. [2024-11-13 15:58:21,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 15:58:21,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:21,131 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 15:58:21,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:58:21,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:21,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash -262978971, now seen corresponding path program 1 times [2024-11-13 15:58:21,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:21,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176579667] [2024-11-13 15:58:21,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:21,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:58:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 15:58:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:21,877 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 15:58:21,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:21,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176579667] [2024-11-13 15:58:21,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176579667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:21,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:21,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:21,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113408948] [2024-11-13 15:58:21,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:21,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:21,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:21,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:21,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:21,881 INFO L87 Difference]: Start difference. First operand 537 states and 894 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 15:58:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:27,436 INFO L93 Difference]: Finished difference Result 1209 states and 2043 transitions. [2024-11-13 15:58:27,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:58:27,437 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 15:58:27,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:27,443 INFO L225 Difference]: With dead ends: 1209 [2024-11-13 15:58:27,443 INFO L226 Difference]: Without dead ends: 690 [2024-11-13 15:58:27,446 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 15:58:27,447 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1107 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 2511 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 2511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:27,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 1079 Invalid, 2754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [243 Valid, 2511 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:58:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-13 15:58:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 537. [2024-11-13 15:58:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 425 states have (on average 1.6941176470588235) internal successors, (720), 446 states have internal predecessors, (720), 89 states have call successors, (89), 23 states have call predecessors, (89), 22 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-13 15:58:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 893 transitions. [2024-11-13 15:58:27,566 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 893 transitions. Word has length 64 [2024-11-13 15:58:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:27,566 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 893 transitions. [2024-11-13 15:58:27,566 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 15:58:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 893 transitions. [2024-11-13 15:58:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:58:27,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:27,571 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 15:58:27,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:58:27,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:27,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:27,572 INFO L85 PathProgramCache]: Analyzing trace with hash -49221527, now seen corresponding path program 1 times [2024-11-13 15:58:27,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:27,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095839106] [2024-11-13 15:58:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:27,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:27,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:27,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 15:58:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:28,437 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 15:58:28,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:28,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095839106] [2024-11-13 15:58:28,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095839106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:58:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297906858] [2024-11-13 15:58:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:28,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:58:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:58:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:58:28,440 INFO L87 Difference]: Start difference. First operand 537 states and 893 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 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 15:58:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:36,210 INFO L93 Difference]: Finished difference Result 1186 states and 1993 transitions. [2024-11-13 15:58:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:58:36,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 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 65 [2024-11-13 15:58:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:36,222 INFO L225 Difference]: With dead ends: 1186 [2024-11-13 15:58:36,222 INFO L226 Difference]: Without dead ends: 716 [2024-11-13 15:58:36,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:58:36,227 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1195 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 4700 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 4700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:36,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1986 Invalid, 4942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 4700 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-13 15:58:36,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-13 15:58:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 550. [2024-11-13 15:58:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6896551724137931) internal successors, (735), 458 states have internal predecessors, (735), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:58:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 912 transitions. [2024-11-13 15:58:36,346 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 912 transitions. Word has length 65 [2024-11-13 15:58:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:36,347 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 912 transitions. [2024-11-13 15:58:36,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 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 15:58:36,347 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 912 transitions. [2024-11-13 15:58:36,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:58:36,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:36,350 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 15:58:36,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:58:36,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:36,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash 920359496, now seen corresponding path program 1 times [2024-11-13 15:58:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:36,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736644251] [2024-11-13 15:58:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:36,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:36,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:36,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:37,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 15:58:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:37,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:37,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:37,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:37,110 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 15:58:37,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:37,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736644251] [2024-11-13 15:58:37,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736644251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:37,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:37,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:37,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62438825] [2024-11-13 15:58:37,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:37,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:37,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:37,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:37,113 INFO L87 Difference]: Start difference. First operand 550 states and 912 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 15:58:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:42,688 INFO L93 Difference]: Finished difference Result 1212 states and 2035 transitions. [2024-11-13 15:58:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:58:42,689 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 15:58:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:42,693 INFO L225 Difference]: With dead ends: 1212 [2024-11-13 15:58:42,693 INFO L226 Difference]: Without dead ends: 724 [2024-11-13 15:58:42,696 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 15:58:42,697 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 725 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:42,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1117 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:58:42,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-13 15:58:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 550. [2024-11-13 15:58:42,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6781609195402298) internal successors, (730), 458 states have internal predecessors, (730), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:58:42,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 907 transitions. [2024-11-13 15:58:42,827 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 907 transitions. Word has length 65 [2024-11-13 15:58:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:42,827 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 907 transitions. [2024-11-13 15:58:42,827 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 15:58:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 907 transitions. [2024-11-13 15:58:42,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:58:42,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:42,830 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 15:58:42,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:58:42,830 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:42,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1187892259, now seen corresponding path program 1 times [2024-11-13 15:58:42,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:42,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664336734] [2024-11-13 15:58:42,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:42,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 15:58:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:58:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:43,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664336734] [2024-11-13 15:58:43,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664336734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:43,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:43,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:43,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225855155] [2024-11-13 15:58:43,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:43,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:43,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:43,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:43,536 INFO L87 Difference]: Start difference. First operand 550 states and 907 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 15:58:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:48,805 INFO L93 Difference]: Finished difference Result 1212 states and 2030 transitions. [2024-11-13 15:58:48,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:58:48,805 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 15:58:48,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:48,810 INFO L225 Difference]: With dead ends: 1212 [2024-11-13 15:58:48,810 INFO L226 Difference]: Without dead ends: 724 [2024-11-13 15:58:48,813 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 15:58:48,814 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 1168 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:48,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1115 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:58:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-13 15:58:48,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 550. [2024-11-13 15:58:48,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6666666666666667) internal successors, (725), 458 states have internal predecessors, (725), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:58:48,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 902 transitions. [2024-11-13 15:58:48,945 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 902 transitions. Word has length 66 [2024-11-13 15:58:48,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:48,945 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 902 transitions. [2024-11-13 15:58:48,946 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 15:58:48,949 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 902 transitions. [2024-11-13 15:58:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:58:48,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:48,951 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 15:58:48,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:58:48,952 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:48,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:48,952 INFO L85 PathProgramCache]: Analyzing trace with hash -196893523, now seen corresponding path program 1 times [2024-11-13 15:58:48,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:48,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105359718] [2024-11-13 15:58:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:48,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 15:58:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:49,674 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 15:58:49,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:49,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105359718] [2024-11-13 15:58:49,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105359718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:49,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:49,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:49,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142278459] [2024-11-13 15:58:49,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:49,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:49,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:49,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:49,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:49,676 INFO L87 Difference]: Start difference. First operand 550 states and 902 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 15:58:55,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:58:55,332 INFO L93 Difference]: Finished difference Result 1212 states and 2025 transitions. [2024-11-13 15:58:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:58:55,333 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 15:58:55,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:58:55,337 INFO L225 Difference]: With dead ends: 1212 [2024-11-13 15:58:55,337 INFO L226 Difference]: Without dead ends: 724 [2024-11-13 15:58:55,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:58:55,340 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 722 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:58:55,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1094 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:58:55,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-13 15:58:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 550. [2024-11-13 15:58:55,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6551724137931034) internal successors, (720), 458 states have internal predecessors, (720), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:58:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 897 transitions. [2024-11-13 15:58:55,468 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 897 transitions. Word has length 67 [2024-11-13 15:58:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:58:55,468 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 897 transitions. [2024-11-13 15:58:55,468 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 15:58:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 897 transitions. [2024-11-13 15:58:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:58:55,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:58:55,471 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 15:58:55,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:58:55,471 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:58:55,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash 696579464, now seen corresponding path program 1 times [2024-11-13 15:58:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:55,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024615414] [2024-11-13 15:58:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:58:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:55,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:55,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:58:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:56,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:58:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:58:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:56,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:58:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:56,237 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 15:58:56,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:56,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024615414] [2024-11-13 15:58:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024615414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:56,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:56,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:58:56,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305331351] [2024-11-13 15:58:56,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:56,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:56,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:56,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:58:56,239 INFO L87 Difference]: Start difference. First operand 550 states and 897 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:59:02,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:02,217 INFO L93 Difference]: Finished difference Result 1185 states and 1976 transitions. [2024-11-13 15:59:02,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:59:02,218 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-13 15:59:02,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:02,223 INFO L225 Difference]: With dead ends: 1185 [2024-11-13 15:59:02,223 INFO L226 Difference]: Without dead ends: 712 [2024-11-13 15:59:02,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 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 15:59:02,226 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 710 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:02,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1060 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:59:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-13 15:59:02,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 550. [2024-11-13 15:59:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6528735632183909) internal successors, (719), 458 states have internal predecessors, (719), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:59:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 896 transitions. [2024-11-13 15:59:02,351 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 896 transitions. Word has length 68 [2024-11-13 15:59:02,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:02,352 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 896 transitions. [2024-11-13 15:59:02,352 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), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-13 15:59:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 896 transitions. [2024-11-13 15:59:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:59:02,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:02,355 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 15:59:02,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:59:02,355 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:02,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1263946648, now seen corresponding path program 1 times [2024-11-13 15:59:02,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:02,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975901300] [2024-11-13 15:59:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:02,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:02,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:02,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:02,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-13 15:59:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:03,113 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 15:59:03,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:03,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975901300] [2024-11-13 15:59:03,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975901300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:03,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:03,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:59:03,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960273104] [2024-11-13 15:59:03,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:03,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:59:03,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:59:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:59:03,116 INFO L87 Difference]: Start difference. First operand 550 states and 896 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 15:59:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:08,287 INFO L93 Difference]: Finished difference Result 1212 states and 2016 transitions. [2024-11-13 15:59:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:59:08,287 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 15:59:08,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:08,291 INFO L225 Difference]: With dead ends: 1212 [2024-11-13 15:59:08,292 INFO L226 Difference]: Without dead ends: 724 [2024-11-13 15:59:08,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:59:08,293 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 1171 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:08,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1072 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 15:59:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-13 15:59:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 550. [2024-11-13 15:59:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 435 states have (on average 1.6413793103448275) internal successors, (714), 458 states have internal predecessors, (714), 90 states have call successors, (90), 23 states have call predecessors, (90), 24 states have return successors, (87), 82 states have call predecessors, (87), 85 states have call successors, (87) [2024-11-13 15:59:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 891 transitions. [2024-11-13 15:59:08,403 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 891 transitions. Word has length 68 [2024-11-13 15:59:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 891 transitions. [2024-11-13 15:59:08,403 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 15:59:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 891 transitions. [2024-11-13 15:59:08,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:59:08,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:08,406 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 15:59:08,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:59:08,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:08,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:08,407 INFO L85 PathProgramCache]: Analyzing trace with hash 706586864, now seen corresponding path program 1 times [2024-11-13 15:59:08,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:08,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484129553] [2024-11-13 15:59:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:08,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:08,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:08,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:09,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 15:59:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:09,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:09,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:09,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:09,307 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 15:59:09,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:09,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484129553] [2024-11-13 15:59:09,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484129553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:09,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:09,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:59:09,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410108124] [2024-11-13 15:59:09,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:59:09,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:09,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:59:09,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:59:09,309 INFO L87 Difference]: Start difference. First operand 550 states and 891 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:59:18,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:18,784 INFO L93 Difference]: Finished difference Result 1204 states and 1998 transitions. [2024-11-13 15:59:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 15:59:18,785 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-13 15:59:18,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:18,788 INFO L225 Difference]: With dead ends: 1204 [2024-11-13 15:59:18,788 INFO L226 Difference]: Without dead ends: 728 [2024-11-13 15:59:18,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:59:18,790 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 712 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 6752 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 6752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:18,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2750 Invalid, 6879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [127 Valid, 6752 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-13 15:59:18,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-13 15:59:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 557. [2024-11-13 15:59:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 441 states have (on average 1.6303854875283448) internal successors, (719), 464 states have internal predecessors, (719), 90 states have call successors, (90), 23 states have call predecessors, (90), 25 states have return successors, (89), 83 states have call predecessors, (89), 85 states have call successors, (89) [2024-11-13 15:59:18,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 898 transitions. [2024-11-13 15:59:18,878 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 898 transitions. Word has length 69 [2024-11-13 15:59:18,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:18,879 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 898 transitions. [2024-11-13 15:59:18,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-13 15:59:18,879 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 898 transitions. [2024-11-13 15:59:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 15:59:18,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:18,882 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] [2024-11-13 15:59:18,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:59:18,882 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:18,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:18,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1898921361, now seen corresponding path program 1 times [2024-11-13 15:59:18,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:18,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900029875] [2024-11-13 15:59:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 15:59:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:19,596 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 15:59:19,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900029875] [2024-11-13 15:59:19,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900029875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:19,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:19,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:59:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248989108] [2024-11-13 15:59:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:19,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:59:19,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:19,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:59:19,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:59:19,599 INFO L87 Difference]: Start difference. First operand 557 states and 898 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:24,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:24,790 INFO L93 Difference]: Finished difference Result 1231 states and 2029 transitions. [2024-11-13 15:59:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:59:24,791 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-11-13 15:59:24,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:24,797 INFO L225 Difference]: With dead ends: 1231 [2024-11-13 15:59:24,797 INFO L226 Difference]: Without dead ends: 736 [2024-11-13 15:59:24,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 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 15:59:24,801 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 1166 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:24,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 1087 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:59:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-13 15:59:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 557. [2024-11-13 15:59:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 441 states have (on average 1.619047619047619) internal successors, (714), 464 states have internal predecessors, (714), 90 states have call successors, (90), 23 states have call predecessors, (90), 25 states have return successors, (89), 83 states have call predecessors, (89), 85 states have call successors, (89) [2024-11-13 15:59:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 893 transitions. [2024-11-13 15:59:24,911 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 893 transitions. Word has length 75 [2024-11-13 15:59:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:24,912 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 893 transitions. [2024-11-13 15:59:24,912 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 893 transitions. [2024-11-13 15:59:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 15:59:24,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:24,914 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] [2024-11-13 15:59:24,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:59:24,915 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:24,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1020890602, now seen corresponding path program 1 times [2024-11-13 15:59:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471424286] [2024-11-13 15:59:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:24,935 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 8 [2024-11-13 15:59:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:59:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,748 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 15:59:25,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:25,775 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 15:59:25,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471424286] [2024-11-13 15:59:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471424286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:25,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:25,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:59:25,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255107869] [2024-11-13 15:59:25,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:25,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:59:25,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:59:25,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:59:25,778 INFO L87 Difference]: Start difference. First operand 557 states and 893 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 15:59:33,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:33,200 INFO L93 Difference]: Finished difference Result 1216 states and 1998 transitions. [2024-11-13 15:59:33,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:59:33,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 76 [2024-11-13 15:59:33,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:33,206 INFO L225 Difference]: With dead ends: 1216 [2024-11-13 15:59:33,206 INFO L226 Difference]: Without dead ends: 736 [2024-11-13 15:59:33,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:59:33,209 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1149 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 4479 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 4727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 4479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:33,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 1925 Invalid, 4727 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 4479 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 15:59:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-13 15:59:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 561. [2024-11-13 15:59:33,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 445 states have (on average 1.6112359550561797) internal successors, (717), 468 states have internal predecessors, (717), 90 states have call successors, (90), 23 states have call predecessors, (90), 25 states have return successors, (89), 83 states have call predecessors, (89), 85 states have call successors, (89) [2024-11-13 15:59:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 896 transitions. [2024-11-13 15:59:33,334 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 896 transitions. Word has length 76 [2024-11-13 15:59:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:33,334 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 896 transitions. [2024-11-13 15:59:33,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 15:59:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 896 transitions. [2024-11-13 15:59:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-13 15:59:33,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:33,337 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] [2024-11-13 15:59:33,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:59:33,337 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:33,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1175244746, now seen corresponding path program 1 times [2024-11-13 15:59:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558296195] [2024-11-13 15:59:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 15:59:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:33,999 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 15:59:33,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:33,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558296195] [2024-11-13 15:59:33,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558296195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:33,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:33,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:59:33,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779129034] [2024-11-13 15:59:33,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:34,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:59:34,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:59:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:59:34,001 INFO L87 Difference]: Start difference. First operand 561 states and 896 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:39,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:39,574 INFO L93 Difference]: Finished difference Result 1267 states and 2057 transitions. [2024-11-13 15:59:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:59:39,574 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-11-13 15:59:39,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:39,580 INFO L225 Difference]: With dead ends: 1267 [2024-11-13 15:59:39,580 INFO L226 Difference]: Without dead ends: 704 [2024-11-13 15:59:39,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 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 15:59:39,587 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 1103 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2400 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:39,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1046 Invalid, 2647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [247 Valid, 2400 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 15:59:39,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-13 15:59:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 542. [2024-11-13 15:59:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 429 states have (on average 1.6200466200466201) internal successors, (695), 450 states have internal predecessors, (695), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (86), 82 states have call predecessors, (86), 84 states have call successors, (86) [2024-11-13 15:59:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 870 transitions. [2024-11-13 15:59:39,721 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 870 transitions. Word has length 76 [2024-11-13 15:59:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:39,721 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 870 transitions. [2024-11-13 15:59:39,721 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, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:39,722 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 870 transitions. [2024-11-13 15:59:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 15:59:39,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:39,724 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] [2024-11-13 15:59:39,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:59:39,724 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:39,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -548017678, now seen corresponding path program 1 times [2024-11-13 15:59:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:39,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861453058] [2024-11-13 15:59:39,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:39,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:59:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:40,590 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 15:59:40,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:40,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861453058] [2024-11-13 15:59:40,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861453058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:40,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:40,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:59:40,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736882454] [2024-11-13 15:59:40,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:40,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:59:40,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:40,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:59:40,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:59:40,595 INFO L87 Difference]: Start difference. First operand 542 states and 870 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 15:59:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:48,418 INFO L93 Difference]: Finished difference Result 1191 states and 1959 transitions. [2024-11-13 15:59:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 15:59:48,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 77 [2024-11-13 15:59:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:48,422 INFO L225 Difference]: With dead ends: 1191 [2024-11-13 15:59:48,422 INFO L226 Difference]: Without dead ends: 714 [2024-11-13 15:59:48,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:59:48,424 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 682 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 4546 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 4666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 4546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:48,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1906 Invalid, 4666 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 4546 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-13 15:59:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-13 15:59:48,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 547. [2024-11-13 15:59:48,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 434 states have (on average 1.6129032258064515) internal successors, (700), 455 states have internal predecessors, (700), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (86), 82 states have call predecessors, (86), 84 states have call successors, (86) [2024-11-13 15:59:48,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 875 transitions. [2024-11-13 15:59:48,563 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 875 transitions. Word has length 77 [2024-11-13 15:59:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:48,563 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 875 transitions. [2024-11-13 15:59:48,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 15:59:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 875 transitions. [2024-11-13 15:59:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:59:48,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:48,566 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] [2024-11-13 15:59:48,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:59:48,566 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:48,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash 736539965, now seen corresponding path program 1 times [2024-11-13 15:59:48,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:48,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312033451] [2024-11-13 15:59:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:48,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:48,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:59:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:49,274 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 15:59:49,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:49,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312033451] [2024-11-13 15:59:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312033451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:49,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:49,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:59:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124561553] [2024-11-13 15:59:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:49,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:59:49,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:59:49,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:59:49,276 INFO L87 Difference]: Start difference. First operand 547 states and 875 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:59:55,266 INFO L93 Difference]: Finished difference Result 1203 states and 1970 transitions. [2024-11-13 15:59:55,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:59:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-13 15:59:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:59:55,271 INFO L225 Difference]: With dead ends: 1203 [2024-11-13 15:59:55,271 INFO L226 Difference]: Without dead ends: 705 [2024-11-13 15:59:55,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:59:55,273 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 699 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:59:55,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1082 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 15:59:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-13 15:59:55,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 547. [2024-11-13 15:59:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 434 states have (on average 1.6036866359447004) internal successors, (696), 455 states have internal predecessors, (696), 89 states have call successors, (89), 23 states have call predecessors, (89), 23 states have return successors, (86), 82 states have call predecessors, (86), 84 states have call successors, (86) [2024-11-13 15:59:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 871 transitions. [2024-11-13 15:59:55,397 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 871 transitions. Word has length 78 [2024-11-13 15:59:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:59:55,397 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 871 transitions. [2024-11-13 15:59:55,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-13 15:59:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 871 transitions. [2024-11-13 15:59:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 15:59:55,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:59:55,400 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] [2024-11-13 15:59:55,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:59:55,400 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:59:55,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:59:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1202622081, now seen corresponding path program 1 times [2024-11-13 15:59:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:59:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574638076] [2024-11-13 15:59:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:59:55,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:59:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:55,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:59:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:55,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:55,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 15:59:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 15:59:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:59:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:59:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 15:59:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:59:56,365 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 15:59:56,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:59:56,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574638076] [2024-11-13 15:59:56,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574638076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:59:56,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:59:56,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 15:59:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168705768] [2024-11-13 15:59:56,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:59:56,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:59:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:59:56,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:59:56,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:59:56,372 INFO L87 Difference]: Start difference. First operand 547 states and 871 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 16:00:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:00:15,377 INFO L93 Difference]: Finished difference Result 2288 states and 3813 transitions. [2024-11-13 16:00:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 16:00:15,378 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) Word has length 78 [2024-11-13 16:00:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:00:15,390 INFO L225 Difference]: With dead ends: 2288 [2024-11-13 16:00:15,390 INFO L226 Difference]: Without dead ends: 1819 [2024-11-13 16:00:15,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=246, Invalid=1160, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 16:00:15,394 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 4620 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 7135 mSolverCounterSat, 1092 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 8227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1092 IncrementalHoareTripleChecker+Valid, 7135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:00:15,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 2672 Invalid, 8227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1092 Valid, 7135 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-11-13 16:00:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2024-11-13 16:00:15,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1361. [2024-11-13 16:00:15,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 1093 states have (on average 1.6495882891125344) internal successors, (1803), 1124 states have internal predecessors, (1803), 207 states have call successors, (207), 57 states have call predecessors, (207), 60 states have return successors, (221), 194 states have call predecessors, (221), 202 states have call successors, (221) [2024-11-13 16:00:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2231 transitions. [2024-11-13 16:00:15,871 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2231 transitions. Word has length 78 [2024-11-13 16:00:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:00:15,875 INFO L471 AbstractCegarLoop]: Abstraction has 1361 states and 2231 transitions. [2024-11-13 16:00:15,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 6 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-13 16:00:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2231 transitions. [2024-11-13 16:00:15,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 16:00:15,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:00:15,879 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:00:15,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:00:15,880 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:00:15,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:00:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 244960212, now seen corresponding path program 1 times [2024-11-13 16:00:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:00:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769330782] [2024-11-13 16:00:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:00:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:00:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:00:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:00:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:16,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 16:00:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-13 16:00:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:00:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 16:00:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:17,377 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 16:00:17,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:00:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769330782] [2024-11-13 16:00:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769330782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:00:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:00:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 16:00:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313611043] [2024-11-13 16:00:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:00:17,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:00:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:00:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:00:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:00:17,379 INFO L87 Difference]: Start difference. First operand 1361 states and 2231 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 7 states have internal predecessors, (80), 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 16:00:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:00:25,629 INFO L93 Difference]: Finished difference Result 3165 states and 5319 transitions. [2024-11-13 16:00:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:00:25,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 7 states have internal predecessors, (80), 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 107 [2024-11-13 16:00:25,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:00:25,643 INFO L225 Difference]: With dead ends: 3165 [2024-11-13 16:00:25,644 INFO L226 Difference]: Without dead ends: 1883 [2024-11-13 16:00:25,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2024-11-13 16:00:25,650 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 2555 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:00:25,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2555 Valid, 1493 Invalid, 3522 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [755 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-13 16:00:25,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1883 states. [2024-11-13 16:00:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1883 to 1412. [2024-11-13 16:00:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1137 states have (on average 1.6437994722955145) internal successors, (1869), 1165 states have internal predecessors, (1869), 211 states have call successors, (211), 57 states have call predecessors, (211), 63 states have return successors, (231), 201 states have call predecessors, (231), 206 states have call successors, (231) [2024-11-13 16:00:26,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2311 transitions. [2024-11-13 16:00:26,036 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2311 transitions. Word has length 107 [2024-11-13 16:00:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:00:26,037 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 2311 transitions. [2024-11-13 16:00:26,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 7 states have internal predecessors, (80), 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 16:00:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2311 transitions. [2024-11-13 16:00:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 16:00:26,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:00:26,041 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:00:26,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:00:26,041 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:00:26,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:00:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash -13880603, now seen corresponding path program 1 times [2024-11-13 16:00:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:00:26,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300817674] [2024-11-13 16:00:26,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:00:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:00:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:00:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:00:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:26,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:00:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 16:00:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-13 16:00:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:00:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:27,347 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 16:00:27,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:00:27,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300817674] [2024-11-13 16:00:27,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300817674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:00:27,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:00:27,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:00:27,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654315976] [2024-11-13 16:00:27,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:00:27,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:00:27,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:00:27,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:00:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:00:27,350 INFO L87 Difference]: Start difference. First operand 1412 states and 2311 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 16:00:42,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:00:42,548 INFO L93 Difference]: Finished difference Result 4886 states and 8371 transitions. [2024-11-13 16:00:42,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 16:00:42,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2024-11-13 16:00:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:00:42,568 INFO L225 Difference]: With dead ends: 4886 [2024-11-13 16:00:42,568 INFO L226 Difference]: Without dead ends: 3553 [2024-11-13 16:00:42,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-11-13 16:00:42,576 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 3338 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 4429 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 4429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:00:42,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 2615 Invalid, 5399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [970 Valid, 4429 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-13 16:00:42,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2024-11-13 16:00:43,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 2774. [2024-11-13 16:00:43,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2239 states have (on average 1.651183564091112) internal successors, (3697), 2287 states have internal predecessors, (3697), 400 states have call successors, (400), 105 states have call predecessors, (400), 134 states have return successors, (512), 405 states have call predecessors, (512), 395 states have call successors, (512) [2024-11-13 16:00:43,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4609 transitions. [2024-11-13 16:00:43,325 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4609 transitions. Word has length 110 [2024-11-13 16:00:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:00:43,326 INFO L471 AbstractCegarLoop]: Abstraction has 2774 states and 4609 transitions. [2024-11-13 16:00:43,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-13 16:00:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4609 transitions. [2024-11-13 16:00:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 16:00:43,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:00:43,328 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] [2024-11-13 16:00:43,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 16:00:43,329 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:00:43,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:00:43,329 INFO L85 PathProgramCache]: Analyzing trace with hash -952752835, now seen corresponding path program 1 times [2024-11-13 16:00:43,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:00:43,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252226368] [2024-11-13 16:00:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:00:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:00:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:43,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:43,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:43,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:00:43,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:43,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:00:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:00:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:00:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:00:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 16:00:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-13 16:00:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 16:00:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:00:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:00:44,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:00:44,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252226368] [2024-11-13 16:00:44,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252226368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:00:44,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:00:44,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 16:00:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815896011] [2024-11-13 16:00:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:00:44,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:00:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:00:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:00:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:00:44,528 INFO L87 Difference]: Start difference. First operand 2774 states and 4609 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 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 16:01:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:18,844 INFO L93 Difference]: Finished difference Result 10573 states and 18917 transitions. [2024-11-13 16:01:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-13 16:01:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 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 114 [2024-11-13 16:01:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:18,896 INFO L225 Difference]: With dead ends: 10573 [2024-11-13 16:01:18,896 INFO L226 Difference]: Without dead ends: 7869 [2024-11-13 16:01:18,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=734, Invalid=2128, Unknown=0, NotChecked=0, Total=2862 [2024-11-13 16:01:18,915 INFO L432 NwaCegarLoop]: 587 mSDtfsCounter, 8023 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 5929 mSolverCounterSat, 2738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8102 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 8667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2738 IncrementalHoareTripleChecker+Valid, 5929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:18,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8102 Valid, 3466 Invalid, 8667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2738 Valid, 5929 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2024-11-13 16:01:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2024-11-13 16:01:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 6189. [2024-11-13 16:01:20,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 4970 states have (on average 1.6042253521126761) internal successors, (7973), 5091 states have internal predecessors, (7973), 889 states have call successors, (889), 273 states have call predecessors, (889), 329 states have return successors, (1305), 884 states have call predecessors, (1305), 884 states have call successors, (1305) [2024-11-13 16:01:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 10167 transitions. [2024-11-13 16:01:20,898 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 10167 transitions. Word has length 114 [2024-11-13 16:01:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:20,898 INFO L471 AbstractCegarLoop]: Abstraction has 6189 states and 10167 transitions. [2024-11-13 16:01:20,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 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 16:01:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 10167 transitions. [2024-11-13 16:01:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 16:01:20,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:20,902 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] [2024-11-13 16:01:20,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 16:01:20,903 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:20,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:20,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1123511529, now seen corresponding path program 1 times [2024-11-13 16:01:20,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:20,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230411023] [2024-11-13 16:01:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:20,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:01:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:01:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:01:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:21,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:01:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:01:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:01:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 16:01:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 16:01:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:01:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,451 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 16:01:22,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:22,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230411023] [2024-11-13 16:01:22,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230411023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:01:22,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701438885] [2024-11-13 16:01:22,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:22,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:22,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:22,455 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:01:22,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:01:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:22,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:01:22,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:01:23,143 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 16:01:23,144 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:01:23,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701438885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:23,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:01:23,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-13 16:01:23,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154833603] [2024-11-13 16:01:23,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:23,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:01:23,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:01:23,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:01:23,146 INFO L87 Difference]: Start difference. First operand 6189 states and 10167 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:01:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:01:29,245 INFO L93 Difference]: Finished difference Result 16835 states and 28480 transitions. [2024-11-13 16:01:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:01:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2024-11-13 16:01:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:01:29,315 INFO L225 Difference]: With dead ends: 16835 [2024-11-13 16:01:29,315 INFO L226 Difference]: Without dead ends: 10724 [2024-11-13 16:01:29,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-13 16:01:29,343 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 2725 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:01:29,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2851 Valid, 1620 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 16:01:29,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2024-11-13 16:01:32,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 10381. [2024-11-13 16:01:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10381 states, 8099 states have (on average 1.5947647857760217) internal successors, (12916), 8378 states have internal predecessors, (12916), 1750 states have call successors, (1750), 417 states have call predecessors, (1750), 531 states have return successors, (2704), 1788 states have call predecessors, (2704), 1745 states have call successors, (2704) [2024-11-13 16:01:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 17370 transitions. [2024-11-13 16:01:32,401 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 17370 transitions. Word has length 122 [2024-11-13 16:01:32,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:01:32,402 INFO L471 AbstractCegarLoop]: Abstraction has 10381 states and 17370 transitions. [2024-11-13 16:01:32,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 5 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:01:32,402 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 17370 transitions. [2024-11-13 16:01:32,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 16:01:32,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:01:32,406 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, 1, 1, 1, 1, 1] [2024-11-13 16:01:32,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:01:32,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17bc37ee-f13b-4c47-9e52-67f06a16d9f3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:01:32,607 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:01:32,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:32,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2068852866, now seen corresponding path program 1 times [2024-11-13 16:01:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:32,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845245787] [2024-11-13 16:01:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:32,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:01:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:32,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:01:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:01:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:01:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:01:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:01:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:01:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-13 16:01:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 16:01:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,097 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 16:01:34,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:34,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845245787] [2024-11-13 16:01:34,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845245787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:34,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:34,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-13 16:01:34,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749536285] [2024-11-13 16:01:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:34,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 16:01:34,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 16:01:34,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:01:34,098 INFO L87 Difference]: Start difference. First operand 10381 states and 17370 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 11 states have internal predecessors, (96), 5 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-13 16:02:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:02:09,742 INFO L93 Difference]: Finished difference Result 27478 states and 48049 transitions. [2024-11-13 16:02:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-13 16:02:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 11 states have internal predecessors, (96), 5 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 121 [2024-11-13 16:02:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:02:09,857 INFO L225 Difference]: With dead ends: 27478 [2024-11-13 16:02:09,858 INFO L226 Difference]: Without dead ends: 14886 [2024-11-13 16:02:09,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=728, Invalid=3178, Unknown=0, NotChecked=0, Total=3906 [2024-11-13 16:02:09,930 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 5797 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 12204 mSolverCounterSat, 1486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5824 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 13690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1486 IncrementalHoareTripleChecker+Valid, 12204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:02:09,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5824 Valid, 6182 Invalid, 13690 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1486 Valid, 12204 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2024-11-13 16:02:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14886 states. [2024-11-13 16:02:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14886 to 11287. [2024-11-13 16:02:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11287 states, 8801 states have (on average 1.5534598341097603) internal successors, (13672), 9116 states have internal predecessors, (13672), 1870 states have call successors, (1870), 471 states have call predecessors, (1870), 615 states have return successors, (2944), 1902 states have call predecessors, (2944), 1865 states have call successors, (2944) [2024-11-13 16:02:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11287 states to 11287 states and 18486 transitions. [2024-11-13 16:02:14,325 INFO L78 Accepts]: Start accepts. Automaton has 11287 states and 18486 transitions. Word has length 121 [2024-11-13 16:02:14,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:02:14,325 INFO L471 AbstractCegarLoop]: Abstraction has 11287 states and 18486 transitions. [2024-11-13 16:02:14,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 11 states have internal predecessors, (96), 5 states have call successors, (13), 6 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-13 16:02:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 11287 states and 18486 transitions. [2024-11-13 16:02:14,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:02:14,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:02:14,332 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] [2024-11-13 16:02:14,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 16:02:14,332 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:02:14,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:14,333 INFO L85 PathProgramCache]: Analyzing trace with hash 853876183, now seen corresponding path program 1 times [2024-11-13 16:02:14,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:14,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081828401] [2024-11-13 16:02:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:14,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:14,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:02:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:14,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:02:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:02:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:02:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:02:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 16:02:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 16:02:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:02:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 16:02:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:02:15,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081828401] [2024-11-13 16:02:15,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081828401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:15,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:15,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 16:02:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002066249] [2024-11-13 16:02:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:15,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:02:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:02:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:02:15,981 INFO L87 Difference]: Start difference. First operand 11287 states and 18486 transitions. Second operand has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:02:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:02:40,946 INFO L93 Difference]: Finished difference Result 26759 states and 46487 transitions. [2024-11-13 16:02:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-13 16:02:40,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2024-11-13 16:02:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:02:41,077 INFO L225 Difference]: With dead ends: 26759 [2024-11-13 16:02:41,078 INFO L226 Difference]: Without dead ends: 15553 [2024-11-13 16:02:41,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2024-11-13 16:02:41,137 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 3421 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 6046 mSolverCounterSat, 982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 7028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 982 IncrementalHoareTripleChecker+Valid, 6046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:02:41,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 3308 Invalid, 7028 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [982 Valid, 6046 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2024-11-13 16:02:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15553 states. [2024-11-13 16:02:45,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15553 to 11539. [2024-11-13 16:02:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11539 states, 8927 states have (on average 1.5456480340539935) internal successors, (13798), 9320 states have internal predecessors, (13798), 1918 states have call successors, (1918), 471 states have call predecessors, (1918), 693 states have return successors, (3274), 1950 states have call predecessors, (3274), 1913 states have call successors, (3274) [2024-11-13 16:02:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11539 states to 11539 states and 18990 transitions. [2024-11-13 16:02:45,213 INFO L78 Accepts]: Start accepts. Automaton has 11539 states and 18990 transitions. Word has length 123 [2024-11-13 16:02:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:02:45,213 INFO L471 AbstractCegarLoop]: Abstraction has 11539 states and 18990 transitions. [2024-11-13 16:02:45,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:02:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 11539 states and 18990 transitions. [2024-11-13 16:02:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 16:02:45,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:02:45,219 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] [2024-11-13 16:02:45,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 16:02:45,220 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:02:45,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:45,220 INFO L85 PathProgramCache]: Analyzing trace with hash 755367778, now seen corresponding path program 1 times [2024-11-13 16:02:45,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:45,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206336496] [2024-11-13 16:02:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:45,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:02:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:45,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:45,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:02:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:02:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:02:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:02:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:02:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:02:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:02:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:02:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 16:02:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 16:02:46,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:46,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206336496] [2024-11-13 16:02:46,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206336496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:46,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:46,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 16:02:46,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805892288] [2024-11-13 16:02:46,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:46,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:02:46,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:02:46,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:02:46,732 INFO L87 Difference]: Start difference. First operand 11539 states and 18990 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:03:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:03:11,204 INFO L93 Difference]: Finished difference Result 28869 states and 49687 transitions. [2024-11-13 16:03:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 16:03:11,205 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 126 [2024-11-13 16:03:11,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:03:11,316 INFO L225 Difference]: With dead ends: 28869 [2024-11-13 16:03:11,316 INFO L226 Difference]: Without dead ends: 17407 [2024-11-13 16:03:11,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-11-13 16:03:11,389 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 3410 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 5388 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3471 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 6334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 5388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:03:11,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3471 Valid, 2730 Invalid, 6334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [946 Valid, 5388 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-13 16:03:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17407 states. [2024-11-13 16:03:15,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17407 to 13633. [2024-11-13 16:03:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13633 states, 10613 states have (on average 1.5268067464430415) internal successors, (16204), 11054 states have internal predecessors, (16204), 2170 states have call successors, (2170), 603 states have call predecessors, (2170), 849 states have return successors, (3736), 2178 states have call predecessors, (3736), 2165 states have call successors, (3736) [2024-11-13 16:03:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13633 states to 13633 states and 22110 transitions. [2024-11-13 16:03:16,113 INFO L78 Accepts]: Start accepts. Automaton has 13633 states and 22110 transitions. Word has length 126 [2024-11-13 16:03:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:03:16,113 INFO L471 AbstractCegarLoop]: Abstraction has 13633 states and 22110 transitions. [2024-11-13 16:03:16,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (14), 6 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-13 16:03:16,114 INFO L276 IsEmpty]: Start isEmpty. Operand 13633 states and 22110 transitions. [2024-11-13 16:03:16,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 16:03:16,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:03:16,119 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] [2024-11-13 16:03:16,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 16:03:16,119 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:03:16,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:03:16,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1062475310, now seen corresponding path program 1 times [2024-11-13 16:03:16,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:03:16,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461545820] [2024-11-13 16:03:16,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:03:16,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:03:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:16,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:03:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:16,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:16,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:03:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:16,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:03:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:03:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:03:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:03:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 16:03:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 16:03:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-13 16:03:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:03:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:03:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 16:03:17,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:03:17,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461545820] [2024-11-13 16:03:17,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461545820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:03:17,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:03:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 16:03:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509936188] [2024-11-13 16:03:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:03:17,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:03:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:03:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:03:17,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:03:17,564 INFO L87 Difference]: Start difference. First operand 13633 states and 22110 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 16:03:32,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:03:32,984 INFO L93 Difference]: Finished difference Result 17453 states and 30144 transitions. [2024-11-13 16:03:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:03:32,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2024-11-13 16:03:32,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:03:33,134 INFO L225 Difference]: With dead ends: 17453 [2024-11-13 16:03:33,134 INFO L226 Difference]: Without dead ends: 17438 [2024-11-13 16:03:33,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-13 16:03:33,156 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 2693 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 3941 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2706 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 4696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 3941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:03:33,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2706 Valid, 1789 Invalid, 4696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [755 Valid, 3941 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 16:03:33,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17438 states. [2024-11-13 16:03:37,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17438 to 13654. [2024-11-13 16:03:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13654 states, 10634 states have (on average 1.5257664096294903) internal successors, (16225), 11075 states have internal predecessors, (16225), 2170 states have call successors, (2170), 603 states have call predecessors, (2170), 849 states have return successors, (3736), 2178 states have call predecessors, (3736), 2165 states have call successors, (3736) [2024-11-13 16:03:38,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13654 states to 13654 states and 22131 transitions. [2024-11-13 16:03:38,020 INFO L78 Accepts]: Start accepts. Automaton has 13654 states and 22131 transitions. Word has length 133 [2024-11-13 16:03:38,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:03:38,021 INFO L471 AbstractCegarLoop]: Abstraction has 13654 states and 22131 transitions. [2024-11-13 16:03:38,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 16:03:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 13654 states and 22131 transitions. [2024-11-13 16:03:38,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 16:03:38,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:03:38,027 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] [2024-11-13 16:03:38,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 16:03:38,029 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:03:38,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:03:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash -101549972, now seen corresponding path program 1 times [2024-11-13 16:03:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:03:38,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463415784] [2024-11-13 16:03:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:03:38,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:03:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:38,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:03:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:38,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:38,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:03:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:03:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 16:03:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 16:03:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 16:03:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:03:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:39,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:03:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:40,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:03:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:40,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 16:03:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:40,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 16:03:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:40,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 16:03:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:40,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 16:03:40,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:03:40,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463415784] [2024-11-13 16:03:40,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463415784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:03:40,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:03:40,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 16:03:40,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224068084] [2024-11-13 16:03:40,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:03:40,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 16:03:40,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:03:40,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 16:03:40,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 16:03:40,049 INFO L87 Difference]: Start difference. First operand 13654 states and 22131 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (16), 6 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15)