./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC --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 19ddd5d3e870010456648368aac7f13027e543c029bb47d44edea54e5df0ea2e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:07:38,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:07:38,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 02:07:38,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:07:38,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:07:38,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:07:38,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:07:38,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:07:38,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:07:38,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:07:38,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:07:38,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:07:38,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:07:38,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:07:38,950 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:07:38,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:07:38,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:07:38,950 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 02:07:38,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:07:38,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 02:07:38,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:07:38,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:07:38,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:07:38,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:07:38,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 02:07:38,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:07:38,952 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:07:38,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:07:38,953 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:07:38,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:07:38,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:07:38,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:07:38,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:07:38,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:07:38,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:07:38,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:07:38,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:07:38,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:07:38,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:07:38,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:07:38,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:07:38,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:07:38,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:07:38,956 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_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC 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 -> 19ddd5d3e870010456648368aac7f13027e543c029bb47d44edea54e5df0ea2e [2024-11-24 02:07:39,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:07:39,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:07:39,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:07:39,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:07:39,334 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:07:39,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-11-24 02:07:42,903 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/data/ef12148f8/56181179c34948ada850a03d6911c4e7/FLAG5096004b0 [2024-11-24 02:07:43,273 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:07:43,280 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-11-24 02:07:43,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/data/ef12148f8/56181179c34948ada850a03d6911c4e7/FLAG5096004b0 [2024-11-24 02:07:43,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/data/ef12148f8/56181179c34948ada850a03d6911c4e7 [2024-11-24 02:07:43,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:07:43,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:07:43,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:07:43,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:07:43,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:07:43,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c03fdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43, skipping insertion in model container [2024-11-24 02:07:43,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:07:43,574 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_02601afc-33d7-4583-bc4b-cd54d00c3531/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i[919,932] [2024-11-24 02:07:43,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:07:43,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:07:43,687 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_02601afc-33d7-4583-bc4b-cd54d00c3531/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i[919,932] [2024-11-24 02:07:43,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:07:43,832 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:07:43,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43 WrapperNode [2024-11-24 02:07:43,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:07:43,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:07:43,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:07:43,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:07:43,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,932 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228 [2024-11-24 02:07:43,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:07:43,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:07:43,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:07:43,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:07:43,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,975 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 02:07:43,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:43,995 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:07:44,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:07:44,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:07:44,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:07:44,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (1/1) ... [2024-11-24 02:07:44,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:07:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:07:44,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:07:44,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:07:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:07:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:07:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:07:44,211 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:07:44,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:07:44,844 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-24 02:07:44,845 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:07:44,859 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:07:44,860 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 02:07:44,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:07:44 BoogieIcfgContainer [2024-11-24 02:07:44,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:07:44,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:07:44,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:07:44,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:07:44,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:07:43" (1/3) ... [2024-11-24 02:07:44,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d03eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:07:44, skipping insertion in model container [2024-11-24 02:07:44,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:07:43" (2/3) ... [2024-11-24 02:07:44,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d03eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:07:44, skipping insertion in model container [2024-11-24 02:07:44,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:07:44" (3/3) ... [2024-11-24 02:07:44,876 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i [2024-11-24 02:07:44,926 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:07:44,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-34.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 02:07:45,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:07:45,041 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;@6b99cdcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:07:45,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:07:45,047 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 71 states have internal predecessors, (106), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:07:45,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 02:07:45,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:07:45,066 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:07:45,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:07:45,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:07:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1464893856, now seen corresponding path program 1 times [2024-11-24 02:07:45,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:07:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459394547] [2024-11-24 02:07:45,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:07:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:07:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:07:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 02:07:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:07:45,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459394547] [2024-11-24 02:07:45,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459394547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:07:45,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568386430] [2024-11-24 02:07:45,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:07:45,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:07:45,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:07:45,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:07:45,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:07:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:07:45,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:07:45,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:07:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 02:07:45,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:07:45,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568386430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:07:45,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:07:45,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:07:45,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451772231] [2024-11-24 02:07:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:07:46,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:07:46,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:07:46,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:07:46,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:07:46,035 INFO L87 Difference]: Start difference. First operand has 93 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 71 states have internal predecessors, (106), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:07:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:07:46,092 INFO L93 Difference]: Finished difference Result 179 states and 306 transitions. [2024-11-24 02:07:46,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:07:46,096 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2024-11-24 02:07:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:07:46,109 INFO L225 Difference]: With dead ends: 179 [2024-11-24 02:07:46,109 INFO L226 Difference]: Without dead ends: 89 [2024-11-24 02:07:46,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:07:46,121 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:07:46,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:07:46,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-24 02:07:46,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-24 02:07:46,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.462686567164179) internal successors, (98), 67 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 02:07:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2024-11-24 02:07:46,199 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 138 transitions. Word has length 141 [2024-11-24 02:07:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:07:46,201 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 138 transitions. [2024-11-24 02:07:46,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:07:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2024-11-24 02:07:46,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-24 02:07:46,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:07:46,208 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:07:46,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:07:46,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:07:46,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:07:46,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:07:46,410 INFO L85 PathProgramCache]: Analyzing trace with hash -77428508, now seen corresponding path program 1 times [2024-11-24 02:07:46,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:07:46,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113442145] [2024-11-24 02:07:46,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:07:46,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:07:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:07:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:07:47,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:07:47,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113442145] [2024-11-24 02:07:47,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113442145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:07:47,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:07:47,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:07:47,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410832677] [2024-11-24 02:07:47,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:07:47,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:07:47,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:07:47,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:07:47,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:07:47,552 INFO L87 Difference]: Start difference. First operand 89 states and 138 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:07:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:07:47,861 INFO L93 Difference]: Finished difference Result 301 states and 471 transitions. [2024-11-24 02:07:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:07:47,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 141 [2024-11-24 02:07:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:07:47,867 INFO L225 Difference]: With dead ends: 301 [2024-11-24 02:07:47,867 INFO L226 Difference]: Without dead ends: 215 [2024-11-24 02:07:47,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:07:47,870 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 165 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:07:47,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 450 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:07:47,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-24 02:07:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 183. [2024-11-24 02:07:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 140 states have (on average 1.4857142857142858) internal successors, (208), 140 states have internal predecessors, (208), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 02:07:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 288 transitions. [2024-11-24 02:07:47,922 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 288 transitions. Word has length 141 [2024-11-24 02:07:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:07:47,923 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 288 transitions. [2024-11-24 02:07:47,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:07:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 288 transitions. [2024-11-24 02:07:47,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-24 02:07:47,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:07:47,927 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:07:47,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:07:47,928 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:07:47,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:07:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash -252230160, now seen corresponding path program 1 times [2024-11-24 02:07:47,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:07:47,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635449039] [2024-11-24 02:07:47,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:07:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:07:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:07:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:07:48,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:07:48,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635449039] [2024-11-24 02:07:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635449039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:07:48,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:07:48,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:07:48,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844752525] [2024-11-24 02:07:48,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:07:48,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:07:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:07:48,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:07:48,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:07:48,671 INFO L87 Difference]: Start difference. First operand 183 states and 288 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:07:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:07:49,244 INFO L93 Difference]: Finished difference Result 534 states and 841 transitions. [2024-11-24 02:07:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:07:49,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2024-11-24 02:07:49,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:07:49,254 INFO L225 Difference]: With dead ends: 534 [2024-11-24 02:07:49,254 INFO L226 Difference]: Without dead ends: 354 [2024-11-24 02:07:49,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:07:49,261 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 176 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:07:49,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 483 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:07:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-24 02:07:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 187. [2024-11-24 02:07:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 144 states have (on average 1.4722222222222223) internal successors, (212), 144 states have internal predecessors, (212), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 02:07:49,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 292 transitions. [2024-11-24 02:07:49,360 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 292 transitions. Word has length 142 [2024-11-24 02:07:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:07:49,364 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 292 transitions. [2024-11-24 02:07:49,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:07:49,364 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 292 transitions. [2024-11-24 02:07:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 02:07:49,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:07:49,372 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:07:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:07:49,373 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:07:49,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:07:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash 860487981, now seen corresponding path program 1 times [2024-11-24 02:07:49,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:07:49,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916510566] [2024-11-24 02:07:49,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:07:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:07:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:08,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:08,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916510566] [2024-11-24 02:08:08,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916510566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:08,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:08:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454098482] [2024-11-24 02:08:08,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:08,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:08:08,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:08,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:08:08,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:08:08,779 INFO L87 Difference]: Start difference. First operand 187 states and 292 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:15,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:15,532 INFO L93 Difference]: Finished difference Result 624 states and 955 transitions. [2024-11-24 02:08:15,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:08:15,533 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-24 02:08:15,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:15,539 INFO L225 Difference]: With dead ends: 624 [2024-11-24 02:08:15,539 INFO L226 Difference]: Without dead ends: 440 [2024-11-24 02:08:15,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:08:15,542 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 716 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:15,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 825 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-24 02:08:15,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-24 02:08:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 278. [2024-11-24 02:08:15,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 214 states have (on average 1.4579439252336448) internal successors, (312), 214 states have internal predecessors, (312), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 432 transitions. [2024-11-24 02:08:15,628 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 432 transitions. Word has length 143 [2024-11-24 02:08:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:15,629 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 432 transitions. [2024-11-24 02:08:15,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 432 transitions. [2024-11-24 02:08:15,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 02:08:15,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:15,632 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:15,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:08:15,633 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:15,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:15,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1659471953, now seen corresponding path program 1 times [2024-11-24 02:08:15,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:15,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001692010] [2024-11-24 02:08:15,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:15,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:19,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:19,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001692010] [2024-11-24 02:08:19,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001692010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:19,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:19,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:08:19,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763479690] [2024-11-24 02:08:19,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:19,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:08:19,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:19,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:08:19,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:08:19,496 INFO L87 Difference]: Start difference. First operand 278 states and 432 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:21,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:21,636 INFO L93 Difference]: Finished difference Result 707 states and 1081 transitions. [2024-11-24 02:08:21,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:08:21,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-24 02:08:21,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:21,640 INFO L225 Difference]: With dead ends: 707 [2024-11-24 02:08:21,640 INFO L226 Difference]: Without dead ends: 497 [2024-11-24 02:08:21,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:08:21,642 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 451 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:21,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 522 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:08:21,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-24 02:08:21,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 339. [2024-11-24 02:08:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 275 states have (on average 1.4727272727272727) internal successors, (405), 275 states have internal predecessors, (405), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 525 transitions. [2024-11-24 02:08:21,682 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 525 transitions. Word has length 143 [2024-11-24 02:08:21,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:21,683 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 525 transitions. [2024-11-24 02:08:21,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 525 transitions. [2024-11-24 02:08:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 02:08:21,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:21,685 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:21,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:08:21,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:21,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1540546351, now seen corresponding path program 1 times [2024-11-24 02:08:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690384754] [2024-11-24 02:08:21,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:25,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:25,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690384754] [2024-11-24 02:08:25,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690384754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:25,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:25,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:08:25,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276931679] [2024-11-24 02:08:25,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:25,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 02:08:25,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:25,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 02:08:25,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-24 02:08:25,132 INFO L87 Difference]: Start difference. First operand 339 states and 525 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:27,306 INFO L93 Difference]: Finished difference Result 793 states and 1204 transitions. [2024-11-24 02:08:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 02:08:27,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-24 02:08:27,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:27,311 INFO L225 Difference]: With dead ends: 793 [2024-11-24 02:08:27,311 INFO L226 Difference]: Without dead ends: 546 [2024-11-24 02:08:27,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:08:27,313 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 420 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:27,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 489 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:08:27,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-24 02:08:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 470. [2024-11-24 02:08:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 406 states have (on average 1.4729064039408868) internal successors, (598), 406 states have internal predecessors, (598), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 718 transitions. [2024-11-24 02:08:27,358 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 718 transitions. Word has length 143 [2024-11-24 02:08:27,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:27,359 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 718 transitions. [2024-11-24 02:08:27,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 718 transitions. [2024-11-24 02:08:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 02:08:27,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:27,362 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:27,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:08:27,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:27,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash -409645090, now seen corresponding path program 1 times [2024-11-24 02:08:27,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:27,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698278374] [2024-11-24 02:08:27,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:27,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:29,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:29,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698278374] [2024-11-24 02:08:29,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698278374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:08:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242844442] [2024-11-24 02:08:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:29,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:08:29,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:29,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:08:29,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:08:29,974 INFO L87 Difference]: Start difference. First operand 470 states and 718 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:30,834 INFO L93 Difference]: Finished difference Result 796 states and 1207 transitions. [2024-11-24 02:08:30,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:08:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-24 02:08:30,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:30,839 INFO L225 Difference]: With dead ends: 796 [2024-11-24 02:08:30,839 INFO L226 Difference]: Without dead ends: 566 [2024-11-24 02:08:30,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:08:30,841 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 197 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:30,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 458 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:08:30,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-24 02:08:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 472. [2024-11-24 02:08:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 408 states have (on average 1.4607843137254901) internal successors, (596), 408 states have internal predecessors, (596), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:30,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 716 transitions. [2024-11-24 02:08:30,911 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 716 transitions. Word has length 143 [2024-11-24 02:08:30,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:30,912 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 716 transitions. [2024-11-24 02:08:30,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 716 transitions. [2024-11-24 02:08:30,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 02:08:30,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:30,915 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:30,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:08:30,915 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:30,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash -160580373, now seen corresponding path program 1 times [2024-11-24 02:08:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:30,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746941491] [2024-11-24 02:08:30,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:31,463 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:31,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746941491] [2024-11-24 02:08:31,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746941491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:31,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:31,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:08:31,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859649500] [2024-11-24 02:08:31,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:31,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:08:31,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:31,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:08:31,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:08:31,467 INFO L87 Difference]: Start difference. First operand 472 states and 716 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:31,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:31,905 INFO L93 Difference]: Finished difference Result 712 states and 1086 transitions. [2024-11-24 02:08:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:08:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 143 [2024-11-24 02:08:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:31,911 INFO L225 Difference]: With dead ends: 712 [2024-11-24 02:08:31,911 INFO L226 Difference]: Without dead ends: 460 [2024-11-24 02:08:31,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:08:31,914 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 98 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:31,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 334 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:08:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-24 02:08:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 432. [2024-11-24 02:08:31,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 368 states have (on average 1.440217391304348) internal successors, (530), 368 states have internal predecessors, (530), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 650 transitions. [2024-11-24 02:08:31,987 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 650 transitions. Word has length 143 [2024-11-24 02:08:31,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:31,992 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 650 transitions. [2024-11-24 02:08:31,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 650 transitions. [2024-11-24 02:08:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 02:08:31,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:31,994 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:31,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:08:31,995 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:31,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash 174777893, now seen corresponding path program 1 times [2024-11-24 02:08:32,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:32,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694405051] [2024-11-24 02:08:32,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:36,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694405051] [2024-11-24 02:08:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694405051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:36,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:36,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 02:08:36,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594388751] [2024-11-24 02:08:36,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:36,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:08:36,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:36,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:08:36,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:08:36,821 INFO L87 Difference]: Start difference. First operand 432 states and 650 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:39,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:39,117 INFO L93 Difference]: Finished difference Result 803 states and 1194 transitions. [2024-11-24 02:08:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:08:39,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-24 02:08:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:39,124 INFO L225 Difference]: With dead ends: 803 [2024-11-24 02:08:39,125 INFO L226 Difference]: Without dead ends: 619 [2024-11-24 02:08:39,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:08:39,128 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 398 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:39,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 526 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:08:39,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-24 02:08:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 448. [2024-11-24 02:08:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 382 states have (on average 1.4293193717277486) internal successors, (546), 382 states have internal predecessors, (546), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 666 transitions. [2024-11-24 02:08:39,194 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 666 transitions. Word has length 144 [2024-11-24 02:08:39,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:39,195 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 666 transitions. [2024-11-24 02:08:39,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:39,199 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 666 transitions. [2024-11-24 02:08:39,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-24 02:08:39,202 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:39,202 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:39,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:08:39,203 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:39,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1479263024, now seen corresponding path program 1 times [2024-11-24 02:08:39,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:39,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042023546] [2024-11-24 02:08:39,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:39,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:47,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042023546] [2024-11-24 02:08:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042023546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:47,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:47,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:08:47,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077196591] [2024-11-24 02:08:47,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:47,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:08:47,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:47,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:08:47,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:08:47,897 INFO L87 Difference]: Start difference. First operand 448 states and 666 transitions. Second operand has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:51,860 INFO L93 Difference]: Finished difference Result 974 states and 1413 transitions. [2024-11-24 02:08:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:08:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2024-11-24 02:08:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:51,871 INFO L225 Difference]: With dead ends: 974 [2024-11-24 02:08:51,872 INFO L226 Difference]: Without dead ends: 635 [2024-11-24 02:08:51,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-24 02:08:51,876 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 289 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:51,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 911 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-24 02:08:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-24 02:08:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 519. [2024-11-24 02:08:51,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 453 states have (on average 1.4061810154525387) internal successors, (637), 453 states have internal predecessors, (637), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:08:51,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 757 transitions. [2024-11-24 02:08:51,947 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 757 transitions. Word has length 144 [2024-11-24 02:08:51,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:51,948 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 757 transitions. [2024-11-24 02:08:51,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:51,949 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 757 transitions. [2024-11-24 02:08:51,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 02:08:51,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:51,951 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:51,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:08:51,952 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:51,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:51,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1212835736, now seen corresponding path program 1 times [2024-11-24 02:08:51,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:51,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86773275] [2024-11-24 02:08:51,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:51,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:09:03,365 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:09:03,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:09:03,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86773275] [2024-11-24 02:09:03,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86773275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:09:03,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:09:03,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:09:03,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279310536] [2024-11-24 02:09:03,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:09:03,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:09:03,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:09:03,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:09:03,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:09:03,367 INFO L87 Difference]: Start difference. First operand 519 states and 757 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:09:07,829 INFO L93 Difference]: Finished difference Result 813 states and 1172 transitions. [2024-11-24 02:09:07,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:09:07,829 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-24 02:09:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:09:07,833 INFO L225 Difference]: With dead ends: 813 [2024-11-24 02:09:07,833 INFO L226 Difference]: Without dead ends: 613 [2024-11-24 02:09:07,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:09:07,835 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 406 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:09:07,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 685 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 02:09:07,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-24 02:09:07,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 509. [2024-11-24 02:09:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 443 states have (on average 1.4108352144469527) internal successors, (625), 443 states have internal predecessors, (625), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:09:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 745 transitions. [2024-11-24 02:09:07,902 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 745 transitions. Word has length 145 [2024-11-24 02:09:07,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:09:07,902 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 745 transitions. [2024-11-24 02:09:07,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:07,903 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 745 transitions. [2024-11-24 02:09:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 02:09:07,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:09:07,910 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:09:07,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:09:07,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:09:07,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:09:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash -919249390, now seen corresponding path program 1 times [2024-11-24 02:09:07,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:09:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436891272] [2024-11-24 02:09:07,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:09:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:09:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:09:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:09:16,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:09:16,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436891272] [2024-11-24 02:09:16,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436891272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:09:16,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:09:16,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:09:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765859995] [2024-11-24 02:09:16,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:09:16,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:09:16,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:09:16,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:09:16,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:09:16,954 INFO L87 Difference]: Start difference. First operand 509 states and 745 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:09:22,427 INFO L93 Difference]: Finished difference Result 807 states and 1174 transitions. [2024-11-24 02:09:22,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:09:22,428 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-24 02:09:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:09:22,432 INFO L225 Difference]: With dead ends: 807 [2024-11-24 02:09:22,432 INFO L226 Difference]: Without dead ends: 607 [2024-11-24 02:09:22,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2024-11-24 02:09:22,434 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 377 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:09:22,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 743 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 02:09:22,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-24 02:09:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 509. [2024-11-24 02:09:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 443 states have (on average 1.4108352144469527) internal successors, (625), 443 states have internal predecessors, (625), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:09:22,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 745 transitions. [2024-11-24 02:09:22,498 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 745 transitions. Word has length 145 [2024-11-24 02:09:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:09:22,499 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 745 transitions. [2024-11-24 02:09:22,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 745 transitions. [2024-11-24 02:09:22,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 02:09:22,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:09:22,502 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:09:22,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:09:22,502 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:09:22,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:09:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash -2014198382, now seen corresponding path program 1 times [2024-11-24 02:09:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:09:22,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700543146] [2024-11-24 02:09:22,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:09:22,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:09:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:09:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:09:29,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:09:29,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700543146] [2024-11-24 02:09:29,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700543146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:09:29,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:09:29,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:09:29,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663732436] [2024-11-24 02:09:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:09:29,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:09:29,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:09:29,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:09:29,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:09:29,048 INFO L87 Difference]: Start difference. First operand 509 states and 745 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:09:38,284 INFO L93 Difference]: Finished difference Result 1188 states and 1711 transitions. [2024-11-24 02:09:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:09:38,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-24 02:09:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:09:38,289 INFO L225 Difference]: With dead ends: 1188 [2024-11-24 02:09:38,290 INFO L226 Difference]: Without dead ends: 887 [2024-11-24 02:09:38,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2024-11-24 02:09:38,292 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 645 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:09:38,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 791 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-24 02:09:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-24 02:09:38,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 593. [2024-11-24 02:09:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:09:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 865 transitions. [2024-11-24 02:09:38,368 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 865 transitions. Word has length 145 [2024-11-24 02:09:38,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:09:38,369 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 865 transitions. [2024-11-24 02:09:38,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:09:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 865 transitions. [2024-11-24 02:09:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-24 02:09:38,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:09:38,372 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:09:38,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 02:09:38,372 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:09:38,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:09:38,373 INFO L85 PathProgramCache]: Analyzing trace with hash -239191020, now seen corresponding path program 1 times [2024-11-24 02:09:38,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:09:38,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256029394] [2024-11-24 02:09:38,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:09:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:09:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:10:01,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256029394] [2024-11-24 02:10:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256029394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:10:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556385693] [2024-11-24 02:10:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:01,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:10:01,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:01,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:10:01,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:10:01,625 INFO L87 Difference]: Start difference. First operand 593 states and 865 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:10:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:07,622 INFO L93 Difference]: Finished difference Result 911 states and 1311 transitions. [2024-11-24 02:10:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:10:07,624 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145 [2024-11-24 02:10:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:07,628 INFO L225 Difference]: With dead ends: 911 [2024-11-24 02:10:07,628 INFO L226 Difference]: Without dead ends: 707 [2024-11-24 02:10:07,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-24 02:10:07,630 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 407 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:07,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 743 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-24 02:10:07,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-24 02:10:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 615. [2024-11-24 02:10:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 549 states have (on average 1.4043715846994536) internal successors, (771), 549 states have internal predecessors, (771), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:10:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 891 transitions. [2024-11-24 02:10:07,704 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 891 transitions. Word has length 145 [2024-11-24 02:10:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:07,705 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 891 transitions. [2024-11-24 02:10:07,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:10:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 891 transitions. [2024-11-24 02:10:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:10:07,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:07,708 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:07,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:10:07,709 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:07,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash -877955809, now seen corresponding path program 1 times [2024-11-24 02:10:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:07,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931933775] [2024-11-24 02:10:07,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:07,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:10:31,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931933775] [2024-11-24 02:10:31,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931933775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:31,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:31,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:10:31,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616875588] [2024-11-24 02:10:31,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:31,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:10:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:31,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:10:31,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:10:31,094 INFO L87 Difference]: Start difference. First operand 615 states and 891 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:10:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:10:33,217 INFO L93 Difference]: Finished difference Result 1055 states and 1490 transitions. [2024-11-24 02:10:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:10:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 146 [2024-11-24 02:10:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:10:33,222 INFO L225 Difference]: With dead ends: 1055 [2024-11-24 02:10:33,222 INFO L226 Difference]: Without dead ends: 1053 [2024-11-24 02:10:33,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:10:33,224 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 475 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:10:33,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 990 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:10:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-24 02:10:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 756. [2024-11-24 02:10:33,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 690 states have (on average 1.4043478260869566) internal successors, (969), 690 states have internal predecessors, (969), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:10:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 1089 transitions. [2024-11-24 02:10:33,285 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 1089 transitions. Word has length 146 [2024-11-24 02:10:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:10:33,285 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 1089 transitions. [2024-11-24 02:10:33,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:10:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 1089 transitions. [2024-11-24 02:10:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:10:33,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:10:33,288 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:10:33,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 02:10:33,288 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:10:33,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:10:33,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1045272225, now seen corresponding path program 1 times [2024-11-24 02:10:33,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:10:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741395201] [2024-11-24 02:10:33,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:10:33,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:10:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:10:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:10:59,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:10:59,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741395201] [2024-11-24 02:10:59,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741395201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:10:59,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:10:59,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:10:59,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849980541] [2024-11-24 02:10:59,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:10:59,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:10:59,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:10:59,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:10:59,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:10:59,083 INFO L87 Difference]: Start difference. First operand 756 states and 1089 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:11:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:01,016 INFO L93 Difference]: Finished difference Result 1074 states and 1512 transitions. [2024-11-24 02:11:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:11:01,017 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 146 [2024-11-24 02:11:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:01,020 INFO L225 Difference]: With dead ends: 1074 [2024-11-24 02:11:01,021 INFO L226 Difference]: Without dead ends: 1072 [2024-11-24 02:11:01,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:11:01,022 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 454 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:01,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1203 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:11:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-24 02:11:01,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 893. [2024-11-24 02:11:01,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 827 states have (on average 1.396614268440145) internal successors, (1155), 827 states have internal predecessors, (1155), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:11:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1275 transitions. [2024-11-24 02:11:01,105 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1275 transitions. Word has length 146 [2024-11-24 02:11:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:01,105 INFO L471 AbstractCegarLoop]: Abstraction has 893 states and 1275 transitions. [2024-11-24 02:11:01,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:11:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1275 transitions. [2024-11-24 02:11:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:11:01,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:01,109 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:01,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 02:11:01,109 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:01,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:01,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1387428899, now seen corresponding path program 1 times [2024-11-24 02:11:01,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:01,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071711251] [2024-11-24 02:11:01,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:01,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:11:01,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:01,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071711251] [2024-11-24 02:11:01,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071711251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:01,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:01,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:11:01,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907719424] [2024-11-24 02:11:01,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:01,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:11:01,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:01,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:11:01,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:11:01,322 INFO L87 Difference]: Start difference. First operand 893 states and 1275 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:01,564 INFO L93 Difference]: Finished difference Result 1337 states and 1915 transitions. [2024-11-24 02:11:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:11:01,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-24 02:11:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:01,569 INFO L225 Difference]: With dead ends: 1337 [2024-11-24 02:11:01,570 INFO L226 Difference]: Without dead ends: 852 [2024-11-24 02:11:01,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:11:01,572 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 116 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:01,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 519 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:11:01,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-24 02:11:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 828. [2024-11-24 02:11:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 762 states have (on average 1.3923884514435696) internal successors, (1061), 762 states have internal predecessors, (1061), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:11:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1181 transitions. [2024-11-24 02:11:01,670 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1181 transitions. Word has length 146 [2024-11-24 02:11:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:01,671 INFO L471 AbstractCegarLoop]: Abstraction has 828 states and 1181 transitions. [2024-11-24 02:11:01,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1181 transitions. [2024-11-24 02:11:01,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:11:01,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:01,675 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:01,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 02:11:01,675 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:01,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1721048839, now seen corresponding path program 1 times [2024-11-24 02:11:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857460883] [2024-11-24 02:11:01,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:01,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:11:09,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857460883] [2024-11-24 02:11:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857460883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:09,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:09,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:11:09,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083220542] [2024-11-24 02:11:09,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:09,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:11:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:09,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:11:09,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:11:09,845 INFO L87 Difference]: Start difference. First operand 828 states and 1181 transitions. Second operand has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:15,504 INFO L93 Difference]: Finished difference Result 1166 states and 1657 transitions. [2024-11-24 02:11:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:11:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-24 02:11:15,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:15,508 INFO L225 Difference]: With dead ends: 1166 [2024-11-24 02:11:15,508 INFO L226 Difference]: Without dead ends: 958 [2024-11-24 02:11:15,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2024-11-24 02:11:15,510 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 332 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:15,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 911 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 02:11:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-24 02:11:15,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 832. [2024-11-24 02:11:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 766 states have (on average 1.3929503916449086) internal successors, (1067), 766 states have internal predecessors, (1067), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:11:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1187 transitions. [2024-11-24 02:11:15,593 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1187 transitions. Word has length 146 [2024-11-24 02:11:15,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:15,594 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1187 transitions. [2024-11-24 02:11:15,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1187 transitions. [2024-11-24 02:11:15,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:11:15,597 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:15,597 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:15,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 02:11:15,598 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:15,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:15,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1040990469, now seen corresponding path program 1 times [2024-11-24 02:11:15,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:15,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357679973] [2024-11-24 02:11:15,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:15,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:11:19,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:19,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357679973] [2024-11-24 02:11:19,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357679973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:19,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:19,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:11:19,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173401071] [2024-11-24 02:11:19,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:19,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:11:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:19,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:11:19,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:11:19,962 INFO L87 Difference]: Start difference. First operand 832 states and 1187 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:22,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:22,097 INFO L93 Difference]: Finished difference Result 1361 states and 1965 transitions. [2024-11-24 02:11:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:11:22,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-24 02:11:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:22,102 INFO L225 Difference]: With dead ends: 1361 [2024-11-24 02:11:22,102 INFO L226 Difference]: Without dead ends: 1161 [2024-11-24 02:11:22,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:11:22,104 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 249 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:22,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 642 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:11:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2024-11-24 02:11:22,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 930. [2024-11-24 02:11:22,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 864 states have (on average 1.4178240740740742) internal successors, (1225), 864 states have internal predecessors, (1225), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:11:22,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1345 transitions. [2024-11-24 02:11:22,191 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1345 transitions. Word has length 146 [2024-11-24 02:11:22,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:22,191 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1345 transitions. [2024-11-24 02:11:22,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:22,192 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1345 transitions. [2024-11-24 02:11:22,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-24 02:11:22,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:22,194 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:22,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 02:11:22,195 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:22,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash -873119068, now seen corresponding path program 1 times [2024-11-24 02:11:22,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:22,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292619249] [2024-11-24 02:11:22,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:22,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:11:27,599 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:11:27,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:11:27,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292619249] [2024-11-24 02:11:27,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292619249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:11:27,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:11:27,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:11:27,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735984669] [2024-11-24 02:11:27,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:11:27,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:11:27,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:11:27,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:11:27,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:11:27,601 INFO L87 Difference]: Start difference. First operand 930 states and 1345 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:32,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:11:32,488 INFO L93 Difference]: Finished difference Result 1391 states and 2030 transitions. [2024-11-24 02:11:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:11:32,489 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2024-11-24 02:11:32,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:11:32,492 INFO L225 Difference]: With dead ends: 1391 [2024-11-24 02:11:32,492 INFO L226 Difference]: Without dead ends: 1077 [2024-11-24 02:11:32,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:11:32,494 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 232 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:11:32,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 593 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 02:11:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-11-24 02:11:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 932. [2024-11-24 02:11:32,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 866 states have (on average 1.4168591224018476) internal successors, (1227), 866 states have internal predecessors, (1227), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:11:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1347 transitions. [2024-11-24 02:11:32,565 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1347 transitions. Word has length 146 [2024-11-24 02:11:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:11:32,565 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1347 transitions. [2024-11-24 02:11:32,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:11:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1347 transitions. [2024-11-24 02:11:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:11:32,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:11:32,568 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:11:32,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 02:11:32,568 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:11:32,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:11:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2002727641, now seen corresponding path program 1 times [2024-11-24 02:11:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:11:32,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000468156] [2024-11-24 02:11:32,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:11:32,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:11:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:12:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:12:04,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:04,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000468156] [2024-11-24 02:12:04,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000468156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:04,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:04,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:12:04,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540044283] [2024-11-24 02:12:04,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:04,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:12:04,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:04,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:12:04,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:12:04,755 INFO L87 Difference]: Start difference. First operand 932 states and 1347 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:12:09,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:12:09,745 INFO L93 Difference]: Finished difference Result 1162 states and 1645 transitions. [2024-11-24 02:12:09,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:12:09,746 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2024-11-24 02:12:09,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:12:09,749 INFO L225 Difference]: With dead ends: 1162 [2024-11-24 02:12:09,749 INFO L226 Difference]: Without dead ends: 1160 [2024-11-24 02:12:09,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:12:09,750 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 428 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:12:09,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 864 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 02:12:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-24 02:12:09,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 964. [2024-11-24 02:12:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 898 states have (on average 1.418708240534521) internal successors, (1274), 898 states have internal predecessors, (1274), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:12:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1394 transitions. [2024-11-24 02:12:09,836 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1394 transitions. Word has length 147 [2024-11-24 02:12:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:12:09,836 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1394 transitions. [2024-11-24 02:12:09,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 18 states have internal predecessors, (50), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:12:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1394 transitions. [2024-11-24 02:12:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:12:09,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:12:09,840 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:09,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 02:12:09,840 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:12:09,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:09,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122405, now seen corresponding path program 1 times [2024-11-24 02:12:09,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:09,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487077157] [2024-11-24 02:12:09,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:12:09,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:12:09,933 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:12:09,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:09,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487077157] [2024-11-24 02:12:09,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487077157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:09,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:09,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:12:09,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485200996] [2024-11-24 02:12:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:09,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:12:09,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:09,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:12:09,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:12:09,935 INFO L87 Difference]: Start difference. First operand 964 states and 1394 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:12:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:12:10,028 INFO L93 Difference]: Finished difference Result 1439 states and 2091 transitions. [2024-11-24 02:12:10,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:12:10,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:12:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:12:10,034 INFO L225 Difference]: With dead ends: 1439 [2024-11-24 02:12:10,034 INFO L226 Difference]: Without dead ends: 1035 [2024-11-24 02:12:10,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:12:10,038 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 58 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:12:10,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:12:10,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-24 02:12:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 964. [2024-11-24 02:12:10,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 898 states have (on average 1.398663697104677) internal successors, (1256), 898 states have internal predecessors, (1256), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:12:10,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1376 transitions. [2024-11-24 02:12:10,124 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1376 transitions. Word has length 147 [2024-11-24 02:12:10,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:12:10,125 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1376 transitions. [2024-11-24 02:12:10,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:12:10,125 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1376 transitions. [2024-11-24 02:12:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:12:10,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:12:10,128 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:10,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 02:12:10,128 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:12:10,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:10,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1782766565, now seen corresponding path program 1 times [2024-11-24 02:12:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:10,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295886916] [2024-11-24 02:12:10,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:12:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:12:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:12:45,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:12:45,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295886916] [2024-11-24 02:12:45,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295886916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:12:45,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:12:45,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:12:45,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897718587] [2024-11-24 02:12:45,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:12:45,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:12:45,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:12:45,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:12:45,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:12:45,283 INFO L87 Difference]: Start difference. First operand 964 states and 1376 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:12:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:12:49,042 INFO L93 Difference]: Finished difference Result 1134 states and 1582 transitions. [2024-11-24 02:12:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:12:49,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:12:49,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:12:49,048 INFO L225 Difference]: With dead ends: 1134 [2024-11-24 02:12:49,048 INFO L226 Difference]: Without dead ends: 1132 [2024-11-24 02:12:49,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2024-11-24 02:12:49,050 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 285 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:12:49,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 769 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-24 02:12:49,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-24 02:12:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 996. [2024-11-24 02:12:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 930 states have (on average 1.396774193548387) internal successors, (1299), 930 states have internal predecessors, (1299), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:12:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1419 transitions. [2024-11-24 02:12:49,162 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1419 transitions. Word has length 147 [2024-11-24 02:12:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:12:49,163 INFO L471 AbstractCegarLoop]: Abstraction has 996 states and 1419 transitions. [2024-11-24 02:12:49,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:12:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1419 transitions. [2024-11-24 02:12:49,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:12:49,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:12:49,170 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:12:49,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 02:12:49,170 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:12:49,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:12:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash -397852357, now seen corresponding path program 1 times [2024-11-24 02:12:49,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:12:49,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791052844] [2024-11-24 02:12:49,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:12:49,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:12:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:08,061 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:08,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:08,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791052844] [2024-11-24 02:13:08,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791052844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:08,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 02:13:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859886612] [2024-11-24 02:13:08,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:08,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 02:13:08,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:08,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 02:13:08,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:13:08,063 INFO L87 Difference]: Start difference. First operand 996 states and 1419 transitions. Second operand has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:14,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:14,005 INFO L93 Difference]: Finished difference Result 1709 states and 2391 transitions. [2024-11-24 02:13:14,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:13:14,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:13:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:14,010 INFO L225 Difference]: With dead ends: 1709 [2024-11-24 02:13:14,010 INFO L226 Difference]: Without dead ends: 1379 [2024-11-24 02:13:14,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:13:14,012 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 815 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:14,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 792 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 02:13:14,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-11-24 02:13:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1020. [2024-11-24 02:13:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 954 states have (on average 1.3972746331236898) internal successors, (1333), 954 states have internal predecessors, (1333), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1453 transitions. [2024-11-24 02:13:14,105 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1453 transitions. Word has length 147 [2024-11-24 02:13:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:14,106 INFO L471 AbstractCegarLoop]: Abstraction has 1020 states and 1453 transitions. [2024-11-24 02:13:14,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1453 transitions. [2024-11-24 02:13:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:13:14,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:14,109 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:14,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 02:13:14,109 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:14,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:14,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1377155005, now seen corresponding path program 1 times [2024-11-24 02:13:14,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:14,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057770585] [2024-11-24 02:13:14,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:14,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:19,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:19,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057770585] [2024-11-24 02:13:19,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057770585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:19,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:19,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:13:19,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007721708] [2024-11-24 02:13:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:19,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:13:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:19,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:13:19,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:13:19,553 INFO L87 Difference]: Start difference. First operand 1020 states and 1453 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:22,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:22,916 INFO L93 Difference]: Finished difference Result 1658 states and 2357 transitions. [2024-11-24 02:13:22,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:13:22,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:13:22,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:22,920 INFO L225 Difference]: With dead ends: 1658 [2024-11-24 02:13:22,920 INFO L226 Difference]: Without dead ends: 1328 [2024-11-24 02:13:22,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:13:22,922 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 235 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:22,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 470 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 02:13:22,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-11-24 02:13:22,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1000. [2024-11-24 02:13:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 934 states have (on average 1.3972162740899357) internal successors, (1305), 934 states have internal predecessors, (1305), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:22,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1425 transitions. [2024-11-24 02:13:22,969 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1425 transitions. Word has length 147 [2024-11-24 02:13:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:22,970 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1425 transitions. [2024-11-24 02:13:22,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1425 transitions. [2024-11-24 02:13:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:13:22,972 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:22,972 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:22,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 02:13:22,973 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:22,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:22,973 INFO L85 PathProgramCache]: Analyzing trace with hash 282206013, now seen corresponding path program 1 times [2024-11-24 02:13:22,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:22,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303355483] [2024-11-24 02:13:22,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:22,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:26,805 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:26,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:26,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303355483] [2024-11-24 02:13:26,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303355483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:26,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:26,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:13:26,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627380061] [2024-11-24 02:13:26,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:26,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:13:26,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:26,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:13:26,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:13:26,808 INFO L87 Difference]: Start difference. First operand 1000 states and 1425 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:29,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:29,469 INFO L93 Difference]: Finished difference Result 1560 states and 2206 transitions. [2024-11-24 02:13:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:13:29,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:13:29,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:29,474 INFO L225 Difference]: With dead ends: 1560 [2024-11-24 02:13:29,474 INFO L226 Difference]: Without dead ends: 1152 [2024-11-24 02:13:29,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:13:29,476 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 284 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:29,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 644 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 02:13:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2024-11-24 02:13:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 913. [2024-11-24 02:13:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 847 states have (on average 1.386068476977568) internal successors, (1174), 847 states have internal predecessors, (1174), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1294 transitions. [2024-11-24 02:13:29,548 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1294 transitions. Word has length 147 [2024-11-24 02:13:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:29,548 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1294 transitions. [2024-11-24 02:13:29,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1294 transitions. [2024-11-24 02:13:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-24 02:13:29,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:29,550 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:29,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 02:13:29,551 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:29,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:29,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2057213375, now seen corresponding path program 1 times [2024-11-24 02:13:29,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:29,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268844738] [2024-11-24 02:13:29,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:29,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:47,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:47,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268844738] [2024-11-24 02:13:47,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268844738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:47,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:47,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:13:47,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426288543] [2024-11-24 02:13:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:47,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:13:47,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:47,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:13:47,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:13:47,247 INFO L87 Difference]: Start difference. First operand 913 states and 1294 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:52,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:52,404 INFO L93 Difference]: Finished difference Result 1553 states and 2185 transitions. [2024-11-24 02:13:52,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:13:52,405 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 147 [2024-11-24 02:13:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:52,408 INFO L225 Difference]: With dead ends: 1553 [2024-11-24 02:13:52,408 INFO L226 Difference]: Without dead ends: 1219 [2024-11-24 02:13:52,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2024-11-24 02:13:52,410 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 574 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:52,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 714 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 02:13:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-24 02:13:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 952. [2024-11-24 02:13:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 886 states have (on average 1.391647855530474) internal successors, (1233), 886 states have internal predecessors, (1233), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1353 transitions. [2024-11-24 02:13:52,497 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1353 transitions. Word has length 147 [2024-11-24 02:13:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:52,497 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1353 transitions. [2024-11-24 02:13:52,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1353 transitions. [2024-11-24 02:13:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 02:13:52,499 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:52,500 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:52,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 02:13:52,500 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:52,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:52,501 INFO L85 PathProgramCache]: Analyzing trace with hash 15156425, now seen corresponding path program 1 times [2024-11-24 02:13:52,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:52,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728389281] [2024-11-24 02:13:52,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:52,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:52,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:52,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728389281] [2024-11-24 02:13:52,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728389281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:52,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:52,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:13:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481885613] [2024-11-24 02:13:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:52,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:13:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:52,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:13:52,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:13:52,989 INFO L87 Difference]: Start difference. First operand 952 states and 1353 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:53,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:53,925 INFO L93 Difference]: Finished difference Result 1464 states and 2089 transitions. [2024-11-24 02:13:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:13:53,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-24 02:13:53,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:53,929 INFO L225 Difference]: With dead ends: 1464 [2024-11-24 02:13:53,929 INFO L226 Difference]: Without dead ends: 1122 [2024-11-24 02:13:53,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:13:53,930 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 151 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:53,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 611 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 02:13:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2024-11-24 02:13:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1011. [2024-11-24 02:13:53,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 945 states have (on average 1.3873015873015873) internal successors, (1311), 945 states have internal predecessors, (1311), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:54,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1431 transitions. [2024-11-24 02:13:54,000 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1431 transitions. Word has length 148 [2024-11-24 02:13:54,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:54,001 INFO L471 AbstractCegarLoop]: Abstraction has 1011 states and 1431 transitions. [2024-11-24 02:13:54,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1431 transitions. [2024-11-24 02:13:54,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 02:13:54,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:54,002 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:54,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 02:13:54,002 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:54,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash -653893229, now seen corresponding path program 1 times [2024-11-24 02:13:54,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:54,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729806431] [2024-11-24 02:13:54,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:54,585 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:54,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:54,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729806431] [2024-11-24 02:13:54,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729806431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:54,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:54,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:13:54,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075624327] [2024-11-24 02:13:54,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:54,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:13:54,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:54,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:13:54,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:13:54,588 INFO L87 Difference]: Start difference. First operand 1011 states and 1431 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:55,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:55,403 INFO L93 Difference]: Finished difference Result 1405 states and 2008 transitions. [2024-11-24 02:13:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:13:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-11-24 02:13:55,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:55,406 INFO L225 Difference]: With dead ends: 1405 [2024-11-24 02:13:55,407 INFO L226 Difference]: Without dead ends: 1009 [2024-11-24 02:13:55,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:13:55,408 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 203 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:55,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 473 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:13:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2024-11-24 02:13:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 949. [2024-11-24 02:13:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 883 states have (on average 1.3873159682899208) internal successors, (1225), 883 states have internal predecessors, (1225), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:55,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1345 transitions. [2024-11-24 02:13:55,467 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1345 transitions. Word has length 148 [2024-11-24 02:13:55,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:55,468 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1345 transitions. [2024-11-24 02:13:55,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1345 transitions. [2024-11-24 02:13:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 02:13:55,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:55,470 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:55,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 02:13:55,470 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:55,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash -619191226, now seen corresponding path program 1 times [2024-11-24 02:13:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:55,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373018389] [2024-11-24 02:13:55,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:55,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:55,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373018389] [2024-11-24 02:13:55,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373018389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:55,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:55,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:13:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747047295] [2024-11-24 02:13:55,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:55,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:13:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:55,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:13:55,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:13:55,553 INFO L87 Difference]: Start difference. First operand 949 states and 1345 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:55,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:55,740 INFO L93 Difference]: Finished difference Result 1472 states and 2124 transitions. [2024-11-24 02:13:55,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:13:55,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-24 02:13:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:55,745 INFO L225 Difference]: With dead ends: 1472 [2024-11-24 02:13:55,745 INFO L226 Difference]: Without dead ends: 1014 [2024-11-24 02:13:55,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:13:55,747 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 72 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:55,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 246 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:13:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-24 02:13:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 902. [2024-11-24 02:13:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 836 states have (on average 1.4138755980861244) internal successors, (1182), 836 states have internal predecessors, (1182), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1302 transitions. [2024-11-24 02:13:55,818 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1302 transitions. Word has length 150 [2024-11-24 02:13:55,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:55,819 INFO L471 AbstractCegarLoop]: Abstraction has 902 states and 1302 transitions. [2024-11-24 02:13:55,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:55,819 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1302 transitions. [2024-11-24 02:13:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:13:55,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:55,821 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:55,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 02:13:55,821 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:55,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:55,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1382790144, now seen corresponding path program 1 times [2024-11-24 02:13:55,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:55,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568615376] [2024-11-24 02:13:55,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:56,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:56,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568615376] [2024-11-24 02:13:56,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568615376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:56,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:56,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:13:56,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585277515] [2024-11-24 02:13:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:56,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:13:56,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:56,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:13:56,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:13:56,088 INFO L87 Difference]: Start difference. First operand 902 states and 1302 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:56,754 INFO L93 Difference]: Finished difference Result 1487 states and 2140 transitions. [2024-11-24 02:13:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:13:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-11-24 02:13:56,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:56,759 INFO L225 Difference]: With dead ends: 1487 [2024-11-24 02:13:56,760 INFO L226 Difference]: Without dead ends: 1045 [2024-11-24 02:13:56,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:13:56,762 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 147 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:56,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 686 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 02:13:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-24 02:13:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 928. [2024-11-24 02:13:56,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 862 states have (on average 1.406032482598608) internal successors, (1212), 862 states have internal predecessors, (1212), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:56,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1332 transitions. [2024-11-24 02:13:56,818 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1332 transitions. Word has length 151 [2024-11-24 02:13:56,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:56,819 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1332 transitions. [2024-11-24 02:13:56,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:56,819 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1332 transitions. [2024-11-24 02:13:56,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:13:56,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:56,821 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:56,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 02:13:56,821 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:56,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:56,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1312539197, now seen corresponding path program 1 times [2024-11-24 02:13:56,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:56,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968814839] [2024-11-24 02:13:56,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:56,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:13:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:13:57,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:13:57,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968814839] [2024-11-24 02:13:57,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968814839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:13:57,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:13:57,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 02:13:57,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540263107] [2024-11-24 02:13:57,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:13:57,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 02:13:57,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:13:57,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 02:13:57,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:13:57,128 INFO L87 Difference]: Start difference. First operand 928 states and 1332 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:13:57,741 INFO L93 Difference]: Finished difference Result 1412 states and 2040 transitions. [2024-11-24 02:13:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 02:13:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-11-24 02:13:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:13:57,751 INFO L225 Difference]: With dead ends: 1412 [2024-11-24 02:13:57,752 INFO L226 Difference]: Without dead ends: 978 [2024-11-24 02:13:57,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:13:57,754 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 140 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:13:57,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 667 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 02:13:57,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-24 02:13:57,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 926. [2024-11-24 02:13:57,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 860 states have (on average 1.4046511627906977) internal successors, (1208), 860 states have internal predecessors, (1208), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:13:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1328 transitions. [2024-11-24 02:13:57,847 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1328 transitions. Word has length 151 [2024-11-24 02:13:57,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:13:57,847 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1328 transitions. [2024-11-24 02:13:57,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:13:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1328 transitions. [2024-11-24 02:13:57,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:13:57,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:13:57,853 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:13:57,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 02:13:57,853 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:13:57,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:13:57,853 INFO L85 PathProgramCache]: Analyzing trace with hash -502844202, now seen corresponding path program 1 times [2024-11-24 02:13:57,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:13:57,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948964352] [2024-11-24 02:13:57,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:13:57,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:13:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:14:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:14:11,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:14:11,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948964352] [2024-11-24 02:14:11,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948964352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:14:11,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:14:11,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:14:11,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839495551] [2024-11-24 02:14:11,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:14:11,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:14:11,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:14:11,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:14:11,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:14:11,892 INFO L87 Difference]: Start difference. First operand 926 states and 1328 transitions. Second operand has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:14:15,841 INFO L93 Difference]: Finished difference Result 1544 states and 2192 transitions. [2024-11-24 02:14:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:14:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-11-24 02:14:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:14:15,845 INFO L225 Difference]: With dead ends: 1544 [2024-11-24 02:14:15,845 INFO L226 Difference]: Without dead ends: 1047 [2024-11-24 02:14:15,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2024-11-24 02:14:15,846 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 295 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:14:15,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 842 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 02:14:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-24 02:14:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 804. [2024-11-24 02:14:15,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 738 states have (on average 1.4037940379403795) internal successors, (1036), 738 states have internal predecessors, (1036), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:14:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1156 transitions. [2024-11-24 02:14:15,898 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1156 transitions. Word has length 151 [2024-11-24 02:14:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:14:15,898 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1156 transitions. [2024-11-24 02:14:15,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.375) internal successors, (54), 16 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1156 transitions. [2024-11-24 02:14:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:14:15,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:14:15,899 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:14:15,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 02:14:15,899 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:14:15,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:14:15,900 INFO L85 PathProgramCache]: Analyzing trace with hash -668357850, now seen corresponding path program 1 times [2024-11-24 02:14:15,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:14:15,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2977623] [2024-11-24 02:14:15,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:14:15,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:14:15,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:14:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:14:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:14:16,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2977623] [2024-11-24 02:14:16,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2977623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:14:16,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:14:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 02:14:16,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921831726] [2024-11-24 02:14:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:14:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:14:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:14:16,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:14:16,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:14:16,413 INFO L87 Difference]: Start difference. First operand 804 states and 1156 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:14:18,102 INFO L93 Difference]: Finished difference Result 1427 states and 2041 transitions. [2024-11-24 02:14:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:14:18,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-24 02:14:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:14:18,106 INFO L225 Difference]: With dead ends: 1427 [2024-11-24 02:14:18,106 INFO L226 Difference]: Without dead ends: 993 [2024-11-24 02:14:18,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:14:18,108 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 194 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:14:18,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1024 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:14:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-11-24 02:14:18,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 816. [2024-11-24 02:14:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 750 states have (on average 1.3973333333333333) internal successors, (1048), 750 states have internal predecessors, (1048), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:14:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1168 transitions. [2024-11-24 02:14:18,164 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1168 transitions. Word has length 154 [2024-11-24 02:14:18,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:14:18,164 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1168 transitions. [2024-11-24 02:14:18,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:18,164 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1168 transitions. [2024-11-24 02:14:18,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:14:18,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:14:18,165 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:14:18,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 02:14:18,166 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:14:18,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:14:18,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1131306506, now seen corresponding path program 1 times [2024-11-24 02:14:18,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:14:18,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399043115] [2024-11-24 02:14:18,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:14:18,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:14:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:14:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:14:21,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:14:21,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399043115] [2024-11-24 02:14:21,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399043115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:14:21,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:14:21,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 02:14:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101168356] [2024-11-24 02:14:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:14:21,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:14:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:14:21,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:14:21,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:14:21,023 INFO L87 Difference]: Start difference. First operand 816 states and 1168 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:23,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:14:23,932 INFO L93 Difference]: Finished difference Result 1429 states and 2042 transitions. [2024-11-24 02:14:23,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:14:23,933 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-24 02:14:23,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:14:23,936 INFO L225 Difference]: With dead ends: 1429 [2024-11-24 02:14:23,936 INFO L226 Difference]: Without dead ends: 995 [2024-11-24 02:14:23,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:14:23,938 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 331 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:14:23,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 750 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:14:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-24 02:14:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 913. [2024-11-24 02:14:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 847 states have (on average 1.3919716646989375) internal successors, (1179), 847 states have internal predecessors, (1179), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:14:24,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1299 transitions. [2024-11-24 02:14:24,002 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1299 transitions. Word has length 154 [2024-11-24 02:14:24,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:14:24,003 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1299 transitions. [2024-11-24 02:14:24,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:14:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1299 transitions. [2024-11-24 02:14:24,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:14:24,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:14:24,004 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:14:24,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 02:14:24,004 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:14:24,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:14:24,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2142592436, now seen corresponding path program 1 times [2024-11-24 02:14:24,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:14:24,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254271120] [2024-11-24 02:14:24,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:14:24,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:14:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:14:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:14:57,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:14:57,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254271120] [2024-11-24 02:14:57,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254271120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:14:57,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:14:57,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 02:14:57,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789773067] [2024-11-24 02:14:57,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:14:57,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:14:57,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:14:57,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:14:57,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:14:57,892 INFO L87 Difference]: Start difference. First operand 913 states and 1299 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:15:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:15:10,532 INFO L93 Difference]: Finished difference Result 1055 states and 1448 transitions. [2024-11-24 02:15:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-24 02:15:10,533 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-24 02:15:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:15:10,536 INFO L225 Difference]: With dead ends: 1055 [2024-11-24 02:15:10,536 INFO L226 Difference]: Without dead ends: 1053 [2024-11-24 02:15:10,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=472, Invalid=1978, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 02:15:10,537 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 503 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:15:10,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 882 Invalid, 1934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 02:15:10,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2024-11-24 02:15:10,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 928. [2024-11-24 02:15:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 862 states have (on average 1.388631090487239) internal successors, (1197), 862 states have internal predecessors, (1197), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:15:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1317 transitions. [2024-11-24 02:15:10,606 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1317 transitions. Word has length 154 [2024-11-24 02:15:10,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:15:10,606 INFO L471 AbstractCegarLoop]: Abstraction has 928 states and 1317 transitions. [2024-11-24 02:15:10,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:15:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1317 transitions. [2024-11-24 02:15:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-24 02:15:10,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:15:10,608 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:15:10,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 02:15:10,608 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:15:10,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:15:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2070205878, now seen corresponding path program 1 times [2024-11-24 02:15:10,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:15:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605743607] [2024-11-24 02:15:10,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:15:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:15:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:15:35,306 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:15:35,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:15:35,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605743607] [2024-11-24 02:15:35,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605743607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:15:35,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:15:35,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 02:15:35,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306500680] [2024-11-24 02:15:35,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:15:35,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:15:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:15:35,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:15:35,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:15:35,329 INFO L87 Difference]: Start difference. First operand 928 states and 1317 transitions. Second operand has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:15:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:15:45,641 INFO L93 Difference]: Finished difference Result 1070 states and 1466 transitions. [2024-11-24 02:15:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-24 02:15:45,642 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-11-24 02:15:45,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:15:45,646 INFO L225 Difference]: With dead ends: 1070 [2024-11-24 02:15:45,646 INFO L226 Difference]: Without dead ends: 1068 [2024-11-24 02:15:45,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=470, Invalid=1980, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 02:15:45,647 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 532 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:15:45,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1024 Invalid, 2131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-24 02:15:45,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-24 02:15:45,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 943. [2024-11-24 02:15:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 943 states, 877 states have (on average 1.3854047890535919) internal successors, (1215), 877 states have internal predecessors, (1215), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:15:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 943 states to 943 states and 1335 transitions. [2024-11-24 02:15:45,731 INFO L78 Accepts]: Start accepts. Automaton has 943 states and 1335 transitions. Word has length 154 [2024-11-24 02:15:45,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:15:45,732 INFO L471 AbstractCegarLoop]: Abstraction has 943 states and 1335 transitions. [2024-11-24 02:15:45,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.85) internal successors, (57), 20 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:15:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1335 transitions. [2024-11-24 02:15:45,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:15:45,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:15:45,734 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:15:45,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 02:15:45,734 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:15:45,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:15:45,735 INFO L85 PathProgramCache]: Analyzing trace with hash -562528926, now seen corresponding path program 1 times [2024-11-24 02:15:45,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:15:45,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294890532] [2024-11-24 02:15:45,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:15:45,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:15:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:16:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:16:16,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:16:16,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294890532] [2024-11-24 02:16:16,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294890532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:16:16,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:16:16,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-24 02:16:16,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133928192] [2024-11-24 02:16:16,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:16:16,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 02:16:16,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:16:16,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 02:16:16,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:16:16,751 INFO L87 Difference]: Start difference. First operand 943 states and 1335 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:16:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:16:25,642 INFO L93 Difference]: Finished difference Result 1064 states and 1460 transitions. [2024-11-24 02:16:25,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-24 02:16:25,643 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-11-24 02:16:25,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:16:25,646 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 02:16:25,647 INFO L226 Difference]: Without dead ends: 1062 [2024-11-24 02:16:25,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=564, Invalid=2192, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 02:16:25,648 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 464 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 2030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:16:25,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 961 Invalid, 2030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 02:16:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-24 02:16:25,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 940. [2024-11-24 02:16:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 874 states have (on average 1.3844393592677346) internal successors, (1210), 874 states have internal predecessors, (1210), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:16:25,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1330 transitions. [2024-11-24 02:16:25,705 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1330 transitions. Word has length 155 [2024-11-24 02:16:25,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:16:25,705 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1330 transitions. [2024-11-24 02:16:25,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:16:25,705 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1330 transitions. [2024-11-24 02:16:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-24 02:16:25,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:16:25,707 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:16:25,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 02:16:25,707 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:16:25,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:16:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1488455072, now seen corresponding path program 1 times [2024-11-24 02:16:25,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:16:25,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277073051] [2024-11-24 02:16:25,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:16:25,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:16:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:16:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:16:44,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:16:44,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277073051] [2024-11-24 02:16:44,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277073051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:16:44,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:16:44,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:16:44,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685674331] [2024-11-24 02:16:44,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:16:44,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:16:44,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:16:44,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:16:44,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:16:44,220 INFO L87 Difference]: Start difference. First operand 940 states and 1330 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:16:49,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:16:49,562 INFO L93 Difference]: Finished difference Result 1109 states and 1513 transitions. [2024-11-24 02:16:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 02:16:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2024-11-24 02:16:49,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:16:49,566 INFO L225 Difference]: With dead ends: 1109 [2024-11-24 02:16:49,566 INFO L226 Difference]: Without dead ends: 1107 [2024-11-24 02:16:49,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=332, Invalid=1074, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 02:16:49,567 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 435 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:16:49,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1102 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 02:16:49,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2024-11-24 02:16:49,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 949. [2024-11-24 02:16:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 883 states have (on average 1.3827859569648924) internal successors, (1221), 883 states have internal predecessors, (1221), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:16:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1341 transitions. [2024-11-24 02:16:49,621 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1341 transitions. Word has length 155 [2024-11-24 02:16:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:16:49,621 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1341 transitions. [2024-11-24 02:16:49,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:16:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1341 transitions. [2024-11-24 02:16:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 02:16:49,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:16:49,623 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:16:49,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 02:16:49,623 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:16:49,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:16:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash -532468993, now seen corresponding path program 1 times [2024-11-24 02:16:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:16:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621691467] [2024-11-24 02:16:49,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:16:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:16:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:10,784 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:17:10,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:10,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621691467] [2024-11-24 02:17:10,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621691467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:17:10,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:17:10,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:17:10,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20372699] [2024-11-24 02:17:10,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:17:10,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:17:10,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:10,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:17:10,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:17:10,785 INFO L87 Difference]: Start difference. First operand 949 states and 1341 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:17:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:15,854 INFO L93 Difference]: Finished difference Result 1037 states and 1432 transitions. [2024-11-24 02:17:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:17:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2024-11-24 02:17:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:15,858 INFO L225 Difference]: With dead ends: 1037 [2024-11-24 02:17:15,858 INFO L226 Difference]: Without dead ends: 1035 [2024-11-24 02:17:15,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=227, Invalid=895, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:17:15,859 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 311 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:15,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1101 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 02:17:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-24 02:17:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 935. [2024-11-24 02:17:15,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 869 states have (on average 1.385500575373993) internal successors, (1204), 869 states have internal predecessors, (1204), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:17:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1324 transitions. [2024-11-24 02:17:15,925 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1324 transitions. Word has length 158 [2024-11-24 02:17:15,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:15,925 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1324 transitions. [2024-11-24 02:17:15,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:17:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1324 transitions. [2024-11-24 02:17:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 02:17:15,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:15,927 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:15,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 02:17:15,927 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:15,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash -604855551, now seen corresponding path program 1 times [2024-11-24 02:17:15,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:15,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779424739] [2024-11-24 02:17:15,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:15,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:17:33,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779424739] [2024-11-24 02:17:33,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779424739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:17:33,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:17:33,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:17:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767168088] [2024-11-24 02:17:33,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:17:33,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:17:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:33,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:17:33,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:17:33,733 INFO L87 Difference]: Start difference. First operand 935 states and 1324 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:17:38,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:38,545 INFO L93 Difference]: Finished difference Result 1037 states and 1432 transitions. [2024-11-24 02:17:38,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:17:38,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2024-11-24 02:17:38,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:38,549 INFO L225 Difference]: With dead ends: 1037 [2024-11-24 02:17:38,549 INFO L226 Difference]: Without dead ends: 1035 [2024-11-24 02:17:38,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=228, Invalid=828, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 02:17:38,551 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 244 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:38,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1029 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-24 02:17:38,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2024-11-24 02:17:38,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 921. [2024-11-24 02:17:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 855 states have (on average 1.3883040935672515) internal successors, (1187), 855 states have internal predecessors, (1187), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:17:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1307 transitions. [2024-11-24 02:17:38,648 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1307 transitions. Word has length 158 [2024-11-24 02:17:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:38,649 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1307 transitions. [2024-11-24 02:17:38,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:17:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1307 transitions. [2024-11-24 02:17:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 02:17:38,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:38,651 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:38,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 02:17:38,651 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:38,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1518515005, now seen corresponding path program 1 times [2024-11-24 02:17:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337179329] [2024-11-24 02:17:38,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:38,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:17:42,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337179329] [2024-11-24 02:17:42,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337179329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:17:42,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:17:42,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:17:42,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901698348] [2024-11-24 02:17:42,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:17:42,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 02:17:42,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:42,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 02:17:42,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:17:42,128 INFO L87 Difference]: Start difference. First operand 921 states and 1307 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:17:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:44,062 INFO L93 Difference]: Finished difference Result 1453 states and 2065 transitions. [2024-11-24 02:17:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 02:17:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-24 02:17:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:44,065 INFO L225 Difference]: With dead ends: 1453 [2024-11-24 02:17:44,065 INFO L226 Difference]: Without dead ends: 903 [2024-11-24 02:17:44,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:17:44,066 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 238 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:44,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 618 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:17:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-24 02:17:44,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 837. [2024-11-24 02:17:44,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 771 states have (on average 1.3942931258106355) internal successors, (1075), 771 states have internal predecessors, (1075), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:17:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1195 transitions. [2024-11-24 02:17:44,134 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1195 transitions. Word has length 158 [2024-11-24 02:17:44,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:44,134 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1195 transitions. [2024-11-24 02:17:44,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:17:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1195 transitions. [2024-11-24 02:17:44,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 02:17:44,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:44,136 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:44,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 02:17:44,137 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:44,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:44,137 INFO L85 PathProgramCache]: Analyzing trace with hash 497446651, now seen corresponding path program 1 times [2024-11-24 02:17:44,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:44,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486318649] [2024-11-24 02:17:44,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:44,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:17:44,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:44,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486318649] [2024-11-24 02:17:44,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486318649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:17:44,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:17:44,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 02:17:44,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638724450] [2024-11-24 02:17:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:17:44,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 02:17:44,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:44,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 02:17:44,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 02:17:44,964 INFO L87 Difference]: Start difference. First operand 837 states and 1195 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:17:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:45,893 INFO L93 Difference]: Finished difference Result 1311 states and 1892 transitions. [2024-11-24 02:17:45,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 02:17:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-11-24 02:17:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:45,897 INFO L225 Difference]: With dead ends: 1311 [2024-11-24 02:17:45,897 INFO L226 Difference]: Without dead ends: 816 [2024-11-24 02:17:45,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:17:45,898 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 154 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:45,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 698 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:17:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-24 02:17:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 776. [2024-11-24 02:17:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 710 states have (on average 1.3985915492957746) internal successors, (993), 710 states have internal predecessors, (993), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:17:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1113 transitions. [2024-11-24 02:17:45,952 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1113 transitions. Word has length 158 [2024-11-24 02:17:45,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:45,953 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1113 transitions. [2024-11-24 02:17:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:17:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1113 transitions. [2024-11-24 02:17:45,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-24 02:17:45,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:45,955 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:45,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 02:17:45,956 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:45,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1381257276, now seen corresponding path program 1 times [2024-11-24 02:17:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:45,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007548008] [2024-11-24 02:17:45,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:17:46,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:46,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007548008] [2024-11-24 02:17:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007548008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:17:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941609696] [2024-11-24 02:17:46,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:46,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:17:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:17:46,446 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:17:46,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:17:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:46,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 02:17:46,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:17:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 412 proven. 1663 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2024-11-24 02:17:47,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:17:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 132 proven. 24 refuted. 0 times theorem prover too weak. 3022 trivial. 0 not checked. [2024-11-24 02:17:48,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941609696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:17:48,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:17:48,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 7] total 19 [2024-11-24 02:17:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843083438] [2024-11-24 02:17:48,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:17:48,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:17:48,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:48,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:17:48,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:17:48,331 INFO L87 Difference]: Start difference. First operand 776 states and 1113 transitions. Second operand has 19 states, 19 states have (on average 11.421052631578947) internal successors, (217), 19 states have internal predecessors, (217), 6 states have call successors, (88), 4 states have call predecessors, (88), 6 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) [2024-11-24 02:17:49,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:49,234 INFO L93 Difference]: Finished difference Result 1259 states and 1785 transitions. [2024-11-24 02:17:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:17:49,235 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.421052631578947) internal successors, (217), 19 states have internal predecessors, (217), 6 states have call successors, (88), 4 states have call predecessors, (88), 6 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) Word has length 285 [2024-11-24 02:17:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:49,238 INFO L225 Difference]: With dead ends: 1259 [2024-11-24 02:17:49,238 INFO L226 Difference]: Without dead ends: 898 [2024-11-24 02:17:49,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 02:17:49,240 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1211 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:49,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 989 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 02:17:49,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-24 02:17:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 788. [2024-11-24 02:17:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 719 states have (on average 1.3796940194714882) internal successors, (992), 719 states have internal predecessors, (992), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 02:17:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1112 transitions. [2024-11-24 02:17:49,355 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1112 transitions. Word has length 285 [2024-11-24 02:17:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:49,355 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 1112 transitions. [2024-11-24 02:17:49,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.421052631578947) internal successors, (217), 19 states have internal predecessors, (217), 6 states have call successors, (88), 4 states have call predecessors, (88), 6 states have return successors, (89), 6 states have call predecessors, (89), 6 states have call successors, (89) [2024-11-24 02:17:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1112 transitions. [2024-11-24 02:17:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-24 02:17:49,358 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:49,358 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:49,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 02:17:49,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:17:49,560 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:49,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash 79350780, now seen corresponding path program 1 times [2024-11-24 02:17:49,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:49,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514580652] [2024-11-24 02:17:49,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:49,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 23 proven. 35 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:17:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:17:50,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514580652] [2024-11-24 02:17:50,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514580652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:17:50,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787406676] [2024-11-24 02:17:50,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:50,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:17:50,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:17:50,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:17:50,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 02:17:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:17:50,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-24 02:17:50,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:17:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 2095 proven. 87 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2024-11-24 02:17:53,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:17:56,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787406676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:17:56,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:17:56,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 20 [2024-11-24 02:17:56,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544902830] [2024-11-24 02:17:56,721 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:17:56,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:17:56,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:17:56,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:17:56,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:17:56,723 INFO L87 Difference]: Start difference. First operand 788 states and 1112 transitions. Second operand has 20 states, 20 states have (on average 7.7) internal successors, (154), 19 states have internal predecessors, (154), 7 states have call successors, (80), 6 states have call predecessors, (80), 8 states have return successors, (80), 7 states have call predecessors, (80), 7 states have call successors, (80) [2024-11-24 02:17:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:17:59,377 INFO L93 Difference]: Finished difference Result 2313 states and 3277 transitions. [2024-11-24 02:17:59,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 02:17:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.7) internal successors, (154), 19 states have internal predecessors, (154), 7 states have call successors, (80), 6 states have call predecessors, (80), 8 states have return successors, (80), 7 states have call predecessors, (80), 7 states have call successors, (80) Word has length 285 [2024-11-24 02:17:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:17:59,381 INFO L225 Difference]: With dead ends: 2313 [2024-11-24 02:17:59,382 INFO L226 Difference]: Without dead ends: 1809 [2024-11-24 02:17:59,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=550, Invalid=2642, Unknown=0, NotChecked=0, Total=3192 [2024-11-24 02:17:59,383 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1231 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:17:59,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 911 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:17:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2024-11-24 02:17:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1424. [2024-11-24 02:17:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1283 states have (on average 1.3764614185502728) internal successors, (1766), 1283 states have internal predecessors, (1766), 120 states have call successors, (120), 20 states have call predecessors, (120), 20 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-24 02:17:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2006 transitions. [2024-11-24 02:17:59,539 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2006 transitions. Word has length 285 [2024-11-24 02:17:59,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:17:59,539 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 2006 transitions. [2024-11-24 02:17:59,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.7) internal successors, (154), 19 states have internal predecessors, (154), 7 states have call successors, (80), 6 states have call predecessors, (80), 8 states have return successors, (80), 7 states have call predecessors, (80), 7 states have call successors, (80) [2024-11-24 02:17:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2006 transitions. [2024-11-24 02:17:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 02:17:59,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:17:59,542 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:17:59,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 02:17:59,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:17:59,742 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:17:59,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:17:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1144326875, now seen corresponding path program 1 times [2024-11-24 02:17:59,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:17:59,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231294486] [2024-11-24 02:17:59,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:17:59,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:17:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 23 proven. 35 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:18:00,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:18:00,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231294486] [2024-11-24 02:18:00,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231294486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:00,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139159905] [2024-11-24 02:18:00,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:00,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:18:00,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:18:00,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:18:00,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 02:18:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:00,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 02:18:00,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:18:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 1632 proven. 51 refuted. 0 times theorem prover too weak. 1495 trivial. 0 not checked. [2024-11-24 02:18:00,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:18:00,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 119 proven. 51 refuted. 0 times theorem prover too weak. 3008 trivial. 0 not checked. [2024-11-24 02:18:00,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139159905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:18:00,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:18:00,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2024-11-24 02:18:00,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693152919] [2024-11-24 02:18:00,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:18:00,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:18:00,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:18:00,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:18:00,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:18:00,924 INFO L87 Difference]: Start difference. First operand 1424 states and 2006 transitions. Second operand has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 4 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) [2024-11-24 02:18:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:18:03,433 INFO L93 Difference]: Finished difference Result 2506 states and 3538 transitions. [2024-11-24 02:18:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-24 02:18:03,433 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 4 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) Word has length 286 [2024-11-24 02:18:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:18:03,439 INFO L225 Difference]: With dead ends: 2506 [2024-11-24 02:18:03,439 INFO L226 Difference]: Without dead ends: 1431 [2024-11-24 02:18:03,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 575 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=477, Invalid=1685, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 02:18:03,443 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1390 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:18:03,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 771 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:18:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1431 states. [2024-11-24 02:18:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1431 to 1077. [2024-11-24 02:18:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 930 states have (on average 1.3333333333333333) internal successors, (1240), 930 states have internal predecessors, (1240), 120 states have call successors, (120), 26 states have call predecessors, (120), 26 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-24 02:18:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1480 transitions. [2024-11-24 02:18:03,673 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1480 transitions. Word has length 286 [2024-11-24 02:18:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:18:03,674 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1480 transitions. [2024-11-24 02:18:03,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.153846153846153) internal successors, (158), 13 states have internal predecessors, (158), 4 states have call successors, (94), 2 states have call predecessors, (94), 4 states have return successors, (96), 4 states have call predecessors, (96), 4 states have call successors, (96) [2024-11-24 02:18:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1480 transitions. [2024-11-24 02:18:03,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 02:18:03,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:18:03,677 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:18:03,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-24 02:18:03,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-24 02:18:03,878 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:18:03,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:18:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash -263203124, now seen corresponding path program 1 times [2024-11-24 02:18:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:18:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028349394] [2024-11-24 02:18:03,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:18:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 8 proven. 51 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:18:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:18:06,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028349394] [2024-11-24 02:18:06,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028349394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:06,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466869242] [2024-11-24 02:18:06,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:06,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:18:06,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:18:06,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:18:06,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 02:18:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:07,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:18:07,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:18:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 165 proven. 1704 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-11-24 02:18:08,984 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:18:11,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466869242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:11,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:18:11,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 20 [2024-11-24 02:18:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756588085] [2024-11-24 02:18:11,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:18:11,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:18:11,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:18:11,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:18:11,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:18:11,766 INFO L87 Difference]: Start difference. First operand 1077 states and 1480 transitions. Second operand has 20 states, 20 states have (on average 6.75) internal successors, (135), 20 states have internal predecessors, (135), 4 states have call successors, (80), 4 states have call predecessors, (80), 5 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-24 02:18:15,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:18:15,151 INFO L93 Difference]: Finished difference Result 2423 states and 3351 transitions. [2024-11-24 02:18:15,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 02:18:15,152 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.75) internal successors, (135), 20 states have internal predecessors, (135), 4 states have call successors, (80), 4 states have call predecessors, (80), 5 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) Word has length 286 [2024-11-24 02:18:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:18:15,158 INFO L225 Difference]: With dead ends: 2423 [2024-11-24 02:18:15,158 INFO L226 Difference]: Without dead ends: 1719 [2024-11-24 02:18:15,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=435, Invalid=1635, Unknown=0, NotChecked=0, Total=2070 [2024-11-24 02:18:15,161 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 1178 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:18:15,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 1649 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 02:18:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2024-11-24 02:18:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1389. [2024-11-24 02:18:15,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1194 states have (on average 1.3190954773869348) internal successors, (1575), 1194 states have internal predecessors, (1575), 160 states have call successors, (160), 34 states have call predecessors, (160), 34 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-24 02:18:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1895 transitions. [2024-11-24 02:18:15,342 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1895 transitions. Word has length 286 [2024-11-24 02:18:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:18:15,343 INFO L471 AbstractCegarLoop]: Abstraction has 1389 states and 1895 transitions. [2024-11-24 02:18:15,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.75) internal successors, (135), 20 states have internal predecessors, (135), 4 states have call successors, (80), 4 states have call predecessors, (80), 5 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-24 02:18:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1895 transitions. [2024-11-24 02:18:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 02:18:15,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:18:15,347 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:18:15,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 02:18:15,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-24 02:18:15,548 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:18:15,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:18:15,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1284271478, now seen corresponding path program 1 times [2024-11-24 02:18:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:18:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755300331] [2024-11-24 02:18:15,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:15,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:18:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:18:17,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:18:17,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755300331] [2024-11-24 02:18:17,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755300331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:17,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756134787] [2024-11-24 02:18:17,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:17,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:18:17,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:18:17,765 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:18:17,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 02:18:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:18,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 02:18:18,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:18:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 164 proven. 1705 refuted. 0 times theorem prover too weak. 1310 trivial. 0 not checked. [2024-11-24 02:18:20,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:18:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:18:24,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756134787] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:18:24,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:18:24,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 36 [2024-11-24 02:18:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859386329] [2024-11-24 02:18:24,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:18:24,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-24 02:18:24,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:18:24,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-24 02:18:24,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1115, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 02:18:24,623 INFO L87 Difference]: Start difference. First operand 1389 states and 1895 transitions. Second operand has 36 states, 36 states have (on average 7.166666666666667) internal successors, (258), 36 states have internal predecessors, (258), 8 states have call successors, (120), 4 states have call predecessors, (120), 5 states have return successors, (120), 8 states have call predecessors, (120), 8 states have call successors, (120) [2024-11-24 02:18:34,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:18:34,759 INFO L93 Difference]: Finished difference Result 4268 states and 5833 transitions. [2024-11-24 02:18:34,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-24 02:18:34,759 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 7.166666666666667) internal successors, (258), 36 states have internal predecessors, (258), 8 states have call successors, (120), 4 states have call predecessors, (120), 5 states have return successors, (120), 8 states have call predecessors, (120), 8 states have call successors, (120) Word has length 286 [2024-11-24 02:18:34,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:18:34,769 INFO L225 Difference]: With dead ends: 4268 [2024-11-24 02:18:34,769 INFO L226 Difference]: Without dead ends: 3284 [2024-11-24 02:18:34,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=718, Invalid=4538, Unknown=0, NotChecked=0, Total=5256 [2024-11-24 02:18:34,774 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 2572 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 5226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:18:34,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 3170 Invalid, 5226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-24 02:18:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2024-11-24 02:18:35,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 2431. [2024-11-24 02:18:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 2044 states have (on average 1.3145792563600782) internal successors, (2687), 2044 states have internal predecessors, (2687), 320 states have call successors, (320), 66 states have call predecessors, (320), 66 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2024-11-24 02:18:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 3327 transitions. [2024-11-24 02:18:35,332 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 3327 transitions. Word has length 286 [2024-11-24 02:18:35,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:18:35,332 INFO L471 AbstractCegarLoop]: Abstraction has 2431 states and 3327 transitions. [2024-11-24 02:18:35,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 7.166666666666667) internal successors, (258), 36 states have internal predecessors, (258), 8 states have call successors, (120), 4 states have call predecessors, (120), 5 states have return successors, (120), 8 states have call predecessors, (120), 8 states have call successors, (120) [2024-11-24 02:18:35,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 3327 transitions. [2024-11-24 02:18:35,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 02:18:35,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:18:35,337 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:18:35,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 02:18:35,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-24 02:18:35,537 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:18:35,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:18:35,538 INFO L85 PathProgramCache]: Analyzing trace with hash 490735884, now seen corresponding path program 1 times [2024-11-24 02:18:35,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:18:35,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782761320] [2024-11-24 02:18:35,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:35,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:18:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 5 proven. 54 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:18:40,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:18:40,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782761320] [2024-11-24 02:18:40,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782761320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:40,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978553473] [2024-11-24 02:18:40,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:18:40,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:18:40,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:18:40,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:18:40,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 02:18:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:18:40,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:18:40,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:18:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2024-11-24 02:18:42,928 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:18:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2024-11-24 02:18:52,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978553473] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 02:18:52,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:18:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17, 12] total 35 [2024-11-24 02:18:52,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117695785] [2024-11-24 02:18:52,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:18:52,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:18:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:18:52,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:18:52,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1054, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 02:18:52,746 INFO L87 Difference]: Start difference. First operand 2431 states and 3327 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:19:02,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:05,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:10,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:14,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:17,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:21,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:24,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:27,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:31,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:33,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:38,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:41,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:45,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:19:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:19:53,487 INFO L93 Difference]: Finished difference Result 4385 states and 5990 transitions. [2024-11-24 02:19:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:19:53,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 286 [2024-11-24 02:19:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:19:53,497 INFO L225 Difference]: With dead ends: 4385 [2024-11-24 02:19:53,497 INFO L226 Difference]: Without dead ends: 3366 [2024-11-24 02:19:53,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=191, Invalid=1369, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 02:19:53,501 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 280 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:19:53,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 1127 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 883 Invalid, 6 Unknown, 0 Unchecked, 55.3s Time] [2024-11-24 02:19:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2024-11-24 02:19:54,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 2575. [2024-11-24 02:19:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2188 states have (on average 1.3217550274223036) internal successors, (2892), 2188 states have internal predecessors, (2892), 320 states have call successors, (320), 66 states have call predecessors, (320), 66 states have return successors, (320), 320 states have call predecessors, (320), 320 states have call successors, (320) [2024-11-24 02:19:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 3532 transitions. [2024-11-24 02:19:54,087 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 3532 transitions. Word has length 286 [2024-11-24 02:19:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:19:54,087 INFO L471 AbstractCegarLoop]: Abstraction has 2575 states and 3532 transitions. [2024-11-24 02:19:54,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:19:54,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 3532 transitions. [2024-11-24 02:19:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 02:19:54,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:19:54,092 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:19:54,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 02:19:54,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-24 02:19:54,293 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:19:54,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:19:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash 137867660, now seen corresponding path program 1 times [2024-11-24 02:19:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:19:54,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730487265] [2024-11-24 02:19:54,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:19:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:19:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:19:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 14 proven. 45 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:19:57,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:19:57,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730487265] [2024-11-24 02:19:57,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730487265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:19:57,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497566766] [2024-11-24 02:19:57,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:19:57,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:19:57,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:19:57,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:19:57,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 02:19:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:19:58,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-24 02:19:58,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:20:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3179 backedges. 1658 proven. 1 refuted. 0 times theorem prover too weak. 1520 trivial. 0 not checked. [2024-11-24 02:20:02,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:20:12,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497566766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:12,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:20:12,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16] total 26 [2024-11-24 02:20:12,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460743659] [2024-11-24 02:20:12,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:20:12,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 02:20:12,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:20:12,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 02:20:12,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=962, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:20:12,192 INFO L87 Difference]: Start difference. First operand 2575 states and 3532 transitions. Second operand has 26 states, 26 states have (on average 6.8076923076923075) internal successors, (177), 26 states have internal predecessors, (177), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-24 02:20:24,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:20:24,483 INFO L93 Difference]: Finished difference Result 5628 states and 7710 transitions. [2024-11-24 02:20:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-24 02:20:24,484 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.8076923076923075) internal successors, (177), 26 states have internal predecessors, (177), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) Word has length 286 [2024-11-24 02:20:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:20:24,496 INFO L225 Difference]: With dead ends: 5628 [2024-11-24 02:20:24,497 INFO L226 Difference]: Without dead ends: 3458 [2024-11-24 02:20:24,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=612, Invalid=3420, Unknown=0, NotChecked=0, Total=4032 [2024-11-24 02:20:24,503 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 1079 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 3792 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 3792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:20:24,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 3892 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 3792 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-24 02:20:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3458 states. [2024-11-24 02:20:25,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3458 to 2936. [2024-11-24 02:20:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2501 states have (on average 1.319872051179528) internal successors, (3301), 2501 states have internal predecessors, (3301), 360 states have call successors, (360), 74 states have call predecessors, (360), 74 states have return successors, (360), 360 states have call predecessors, (360), 360 states have call successors, (360) [2024-11-24 02:20:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 4021 transitions. [2024-11-24 02:20:25,094 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 4021 transitions. Word has length 286 [2024-11-24 02:20:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:20:25,095 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 4021 transitions. [2024-11-24 02:20:25,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.8076923076923075) internal successors, (177), 26 states have internal predecessors, (177), 4 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (80), 4 states have call predecessors, (80), 4 states have call successors, (80) [2024-11-24 02:20:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 4021 transitions. [2024-11-24 02:20:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-24 02:20:25,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:20:25,099 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:20:25,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 02:20:25,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-24 02:20:25,300 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:20:25,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:20:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1005218772, now seen corresponding path program 1 times [2024-11-24 02:20:25,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:20:25,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657292892] [2024-11-24 02:20:25,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:20:25,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:20:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:20:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 5 proven. 53 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-24 02:20:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:20:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657292892] [2024-11-24 02:20:29,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657292892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450473182] [2024-11-24 02:20:29,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:20:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:20:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:20:29,399 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:20:29,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02601afc-33d7-4583-bc4b-cd54d00c3531/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 02:20:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:20:29,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 02:20:29,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:20:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2024-11-24 02:20:33,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:20:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3178 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2024-11-24 02:20:48,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450473182] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 02:20:48,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:20:48,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18, 12] total 36 [2024-11-24 02:20:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474276249] [2024-11-24 02:20:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:20:48,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:20:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:20:48,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:20:48,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1123, Unknown=2, NotChecked=0, Total=1260 [2024-11-24 02:20:48,510 INFO L87 Difference]: Start difference. First operand 2936 states and 4021 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:20:50,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:20:54,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:05,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:09,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:11,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:17,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:22,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-24 02:21:24,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]