./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/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 710670ca346a21719bd0508939f664ba04d58832b1c8a269a31e5aa376b94261 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:32:48,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:32:48,324 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:32:48,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:32:48,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:32:48,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:32:48,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:32:48,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:32:48,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:32:48,364 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:32:48,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:32:48,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:32:48,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:32:48,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:32:48,364 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:32:48,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:32:48,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:32:48,366 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:32:48,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:32:48,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:32:48,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:32:48,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:32:48,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:32:48,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:32:48,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:32:48,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:32:48,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:32:48,369 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:32:48,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:32:48,369 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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/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 -> 710670ca346a21719bd0508939f664ba04d58832b1c8a269a31e5aa376b94261 [2024-11-24 01:32:48,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:32:48,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:32:48,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:32:48,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:32:48,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:32:48,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-24 01:32:51,808 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/data/dcf67ed87/912f76a3311f4f6e96d998136b76690b/FLAGae2b010e2 [2024-11-24 01:32:52,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:32:52,218 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-24 01:32:52,241 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/data/dcf67ed87/912f76a3311f4f6e96d998136b76690b/FLAGae2b010e2 [2024-11-24 01:32:52,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/data/dcf67ed87/912f76a3311f4f6e96d998136b76690b [2024-11-24 01:32:52,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:32:52,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:32:52,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:32:52,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:32:52,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:32:52,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb91308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52, skipping insertion in model container [2024-11-24 01:32:52,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:32:52,500 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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i[916,929] [2024-11-24 01:32:52,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:32:52,746 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:32:52,757 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_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-10.i[916,929] [2024-11-24 01:32:52,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:32:52,853 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:32:52,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52 WrapperNode [2024-11-24 01:32:52,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:32:52,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:32:52,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:32:52,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:32:52,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,975 INFO L138 Inliner]: procedures = 26, calls = 85, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 498 [2024-11-24 01:32:52,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:32:52,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:32:52,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:32:52,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:32:52,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:52,996 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,052 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 01:32:53,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,095 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:32:53,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:32:53,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:32:53,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:32:53,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (1/1) ... [2024-11-24 01:32:53,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:32:53,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:53,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:32:53,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:32:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:32:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:32:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:32:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:32:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:32:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:32:53,388 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:32:53,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:32:54,640 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-24 01:32:54,640 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:32:54,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:32:54,659 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:32:54,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:54 BoogieIcfgContainer [2024-11-24 01:32:54,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:32:54,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:32:54,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:32:54,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:32:54,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:32:52" (1/3) ... [2024-11-24 01:32:54,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49038817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:54, skipping insertion in model container [2024-11-24 01:32:54,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:32:52" (2/3) ... [2024-11-24 01:32:54,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49038817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:32:54, skipping insertion in model container [2024-11-24 01:32:54,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:32:54" (3/3) ... [2024-11-24 01:32:54,674 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-10.i [2024-11-24 01:32:54,691 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:32:54,694 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-10.i that has 2 procedures, 220 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:32:54,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:32:54,804 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;@78d153fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:32:54,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:32:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 220 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 146 states have internal predecessors, (220), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:32:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-24 01:32:54,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:54,845 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:54,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:54,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:54,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1044740146, now seen corresponding path program 1 times [2024-11-24 01:32:54,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:54,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072025872] [2024-11-24 01:32:54,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:55,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-24 01:32:55,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072025872] [2024-11-24 01:32:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072025872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:32:55,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694480225] [2024-11-24 01:32:55,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:32:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:32:55,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:32:55,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:32:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:56,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:32:56,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:32:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2024-11-24 01:32:56,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:32:56,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694480225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:56,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:32:56,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:32:56,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145184892] [2024-11-24 01:32:56,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:56,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:32:56,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:56,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:32:56,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:32:56,249 INFO L87 Difference]: Start difference. First operand has 220 states, 145 states have (on average 1.5172413793103448) internal successors, (220), 146 states have internal predecessors, (220), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:32:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:56,347 INFO L93 Difference]: Finished difference Result 432 states and 792 transitions. [2024-11-24 01:32:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:32:56,350 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) Word has length 454 [2024-11-24 01:32:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:56,366 INFO L225 Difference]: With dead ends: 432 [2024-11-24 01:32:56,366 INFO L226 Difference]: Without dead ends: 215 [2024-11-24 01:32:56,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 455 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 01:32:56,377 INFO L435 NwaCegarLoop]: 354 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, 354 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 01:32:56,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:32:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-24 01:32:56,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-24 01:32:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 141 states have (on average 1.4893617021276595) internal successors, (210), 141 states have internal predecessors, (210), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 01:32:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 354 transitions. [2024-11-24 01:32:56,489 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 354 transitions. Word has length 454 [2024-11-24 01:32:56,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:56,489 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 354 transitions. [2024-11-24 01:32:56,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.5) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:32:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 354 transitions. [2024-11-24 01:32:56,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-24 01:32:56,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:56,513 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:56,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:32:56,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e5ccef-33e4-4eb1-9ba6-3cae6d797d12/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:32:56,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:56,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:56,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1391087002, now seen corresponding path program 1 times [2024-11-24 01:32:56,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:56,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215980794] [2024-11-24 01:32:56,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:56,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:32:57,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:57,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215980794] [2024-11-24 01:32:57,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215980794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:57,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:57,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:32:57,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103277838] [2024-11-24 01:32:57,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:57,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:32:57,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:57,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:32:57,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:32:57,504 INFO L87 Difference]: Start difference. First operand 215 states and 354 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:32:57,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:57,630 INFO L93 Difference]: Finished difference Result 552 states and 910 transitions. [2024-11-24 01:32:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:32:57,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 454 [2024-11-24 01:32:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:57,642 INFO L225 Difference]: With dead ends: 552 [2024-11-24 01:32:57,642 INFO L226 Difference]: Without dead ends: 340 [2024-11-24 01:32:57,643 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 01:32:57,646 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 199 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:57,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 691 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:32:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-24 01:32:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2024-11-24 01:32:57,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 232 states have (on average 1.5129310344827587) internal successors, (351), 233 states have internal predecessors, (351), 102 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-24 01:32:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 555 transitions. [2024-11-24 01:32:57,755 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 555 transitions. Word has length 454 [2024-11-24 01:32:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:57,760 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 555 transitions. [2024-11-24 01:32:57,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:32:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 555 transitions. [2024-11-24 01:32:57,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-24 01:32:57,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:57,771 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:57,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:32:57,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:57,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:57,772 INFO L85 PathProgramCache]: Analyzing trace with hash 183449389, now seen corresponding path program 1 times [2024-11-24 01:32:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:57,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215324277] [2024-11-24 01:32:57,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:57,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:32:58,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:58,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215324277] [2024-11-24 01:32:58,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215324277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:58,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:58,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:32:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458240389] [2024-11-24 01:32:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:58,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:32:58,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:58,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:32:58,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:32:58,250 INFO L87 Difference]: Start difference. First operand 337 states and 555 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:32:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:58,383 INFO L93 Difference]: Finished difference Result 914 states and 1504 transitions. [2024-11-24 01:32:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:32:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-24 01:32:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:58,399 INFO L225 Difference]: With dead ends: 914 [2024-11-24 01:32:58,400 INFO L226 Difference]: Without dead ends: 580 [2024-11-24 01:32:58,402 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 01:32:58,404 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 211 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:58,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 793 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:32:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-24 01:32:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2024-11-24 01:32:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 402 states have (on average 1.5049751243781095) internal successors, (605), 405 states have internal predecessors, (605), 170 states have call successors, (170), 4 states have call predecessors, (170), 4 states have return successors, (170), 167 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-24 01:32:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 945 transitions. [2024-11-24 01:32:58,522 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 945 transitions. Word has length 455 [2024-11-24 01:32:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:32:58,527 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 945 transitions. [2024-11-24 01:32:58,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:32:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 945 transitions. [2024-11-24 01:32:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-24 01:32:58,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:32:58,540 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:58,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:32:58,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:32:58,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:32:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash 206081643, now seen corresponding path program 1 times [2024-11-24 01:32:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:32:58,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316362840] [2024-11-24 01:32:58,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:32:58,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:32:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:32:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:32:59,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:32:59,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316362840] [2024-11-24 01:32:59,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316362840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:32:59,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:32:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:32:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643337185] [2024-11-24 01:32:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:32:59,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:32:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:32:59,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:32:59,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:32:59,624 INFO L87 Difference]: Start difference. First operand 577 states and 945 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:32:59,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:32:59,753 INFO L93 Difference]: Finished difference Result 1725 states and 2829 transitions. [2024-11-24 01:32:59,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:32:59,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-24 01:32:59,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:32:59,772 INFO L225 Difference]: With dead ends: 1725 [2024-11-24 01:32:59,772 INFO L226 Difference]: Without dead ends: 1151 [2024-11-24 01:32:59,776 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 01:32:59,777 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 204 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:32:59,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 700 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:32:59,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2024-11-24 01:33:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1145. [2024-11-24 01:33:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 796 states have (on average 1.5) internal successors, (1194), 802 states have internal predecessors, (1194), 340 states have call successors, (340), 8 states have call predecessors, (340), 8 states have return successors, (340), 334 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-24 01:33:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1874 transitions. [2024-11-24 01:33:00,032 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1874 transitions. Word has length 455 [2024-11-24 01:33:00,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:00,034 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1874 transitions. [2024-11-24 01:33:00,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:33:00,035 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1874 transitions. [2024-11-24 01:33:00,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-24 01:33:00,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:00,050 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:33:00,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:33:00,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:33:00,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:00,051 INFO L85 PathProgramCache]: Analyzing trace with hash -611566807, now seen corresponding path program 1 times [2024-11-24 01:33:00,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:00,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324781353] [2024-11-24 01:33:00,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:00,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:33:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:33:00,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:33:00,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324781353] [2024-11-24 01:33:00,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324781353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:33:00,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:33:00,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:33:00,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590261964] [2024-11-24 01:33:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:33:00,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:33:00,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:33:00,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:33:00,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:33:00,884 INFO L87 Difference]: Start difference. First operand 1145 states and 1874 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:33:01,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:33:01,483 INFO L93 Difference]: Finished difference Result 2920 states and 4792 transitions. [2024-11-24 01:33:01,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:33:01,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 455 [2024-11-24 01:33:01,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:33:01,497 INFO L225 Difference]: With dead ends: 2920 [2024-11-24 01:33:01,497 INFO L226 Difference]: Without dead ends: 1778 [2024-11-24 01:33:01,502 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 01:33:01,502 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 294 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:33:01,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1039 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:33:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2024-11-24 01:33:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1520. [2024-11-24 01:33:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1097 states have (on average 1.553327256153145) internal successors, (1704), 1103 states have internal predecessors, (1704), 412 states have call successors, (412), 10 states have call predecessors, (412), 10 states have return successors, (412), 406 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-24 01:33:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2528 transitions. [2024-11-24 01:33:01,743 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2528 transitions. Word has length 455 [2024-11-24 01:33:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:33:01,744 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2528 transitions. [2024-11-24 01:33:01,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:33:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2528 transitions. [2024-11-24 01:33:01,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:33:01,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:33:01,755 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:33:01,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:33:01,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:33:01,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:33:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1350669808, now seen corresponding path program 1 times [2024-11-24 01:33:01,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:33:01,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095765555] [2024-11-24 01:33:01,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:33:01,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:33:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:34:10,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:10,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095765555] [2024-11-24 01:34:10,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095765555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:10,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:10,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:34:10,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159952161] [2024-11-24 01:34:10,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:10,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:34:10,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:10,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:34:10,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:34:10,540 INFO L87 Difference]: Start difference. First operand 1520 states and 2528 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:34:15,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:34:15,546 INFO L93 Difference]: Finished difference Result 4754 states and 7590 transitions. [2024-11-24 01:34:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:34:15,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-24 01:34:15,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:34:15,580 INFO L225 Difference]: With dead ends: 4754 [2024-11-24 01:34:15,581 INFO L226 Difference]: Without dead ends: 3612 [2024-11-24 01:34:15,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:34:15,590 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 717 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:34:15,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2156 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:34:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2024-11-24 01:34:15,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 2629. [2024-11-24 01:34:16,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 1841 states have (on average 1.4541010320478) internal successors, (2677), 1854 states have internal predecessors, (2677), 752 states have call successors, (752), 35 states have call predecessors, (752), 35 states have return successors, (752), 739 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:34:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 4181 transitions. [2024-11-24 01:34:16,032 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 4181 transitions. Word has length 456 [2024-11-24 01:34:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:34:16,033 INFO L471 AbstractCegarLoop]: Abstraction has 2629 states and 4181 transitions. [2024-11-24 01:34:16,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:34:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 4181 transitions. [2024-11-24 01:34:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:34:16,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:34:16,040 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:34:16,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:34:16,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:34:16,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:34:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1608835246, now seen corresponding path program 1 times [2024-11-24 01:34:16,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:34:16,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285152028] [2024-11-24 01:34:16,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:34:16,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:34:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:34:51,799 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:34:51,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:34:51,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285152028] [2024-11-24 01:34:51,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285152028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:34:51,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:34:51,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:34:51,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791238710] [2024-11-24 01:34:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:34:51,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:34:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:34:51,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:34:51,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:34:51,804 INFO L87 Difference]: Start difference. First operand 2629 states and 4181 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:35:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:00,373 INFO L93 Difference]: Finished difference Result 5270 states and 8289 transitions. [2024-11-24 01:35:00,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:35:00,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 456 [2024-11-24 01:35:00,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:00,406 INFO L225 Difference]: With dead ends: 5270 [2024-11-24 01:35:00,407 INFO L226 Difference]: Without dead ends: 4128 [2024-11-24 01:35:00,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=236, Invalid=820, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:35:00,415 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1176 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:00,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 3111 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-24 01:35:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-24 01:35:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 2964. [2024-11-24 01:35:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2175 states have (on average 1.502528735632184) internal successors, (3268), 2187 states have internal predecessors, (3268), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:35:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4772 transitions. [2024-11-24 01:35:00,825 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4772 transitions. Word has length 456 [2024-11-24 01:35:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:00,827 INFO L471 AbstractCegarLoop]: Abstraction has 2964 states and 4772 transitions. [2024-11-24 01:35:00,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:35:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4772 transitions. [2024-11-24 01:35:00,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:35:00,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:00,834 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:35:00,835 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:00,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash -857948240, now seen corresponding path program 1 times [2024-11-24 01:35:00,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:00,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679933347] [2024-11-24 01:35:00,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:00,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:35:28,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:28,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679933347] [2024-11-24 01:35:28,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679933347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:28,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:28,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:35:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386604963] [2024-11-24 01:35:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:28,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:35:28,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:28,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:35:28,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:35:28,568 INFO L87 Difference]: Start difference. First operand 2964 states and 4772 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:35:33,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:33,307 INFO L93 Difference]: Finished difference Result 4982 states and 7881 transitions. [2024-11-24 01:35:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:35:33,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-24 01:35:33,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:33,327 INFO L225 Difference]: With dead ends: 4982 [2024-11-24 01:35:33,327 INFO L226 Difference]: Without dead ends: 3840 [2024-11-24 01:35:33,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:35:33,333 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 742 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:33,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1862 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 01:35:33,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2024-11-24 01:35:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3004. [2024-11-24 01:35:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 2215 states have (on average 1.5042889390519187) internal successors, (3332), 2227 states have internal predecessors, (3332), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:35:33,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 4836 transitions. [2024-11-24 01:35:33,692 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 4836 transitions. Word has length 456 [2024-11-24 01:35:33,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:33,693 INFO L471 AbstractCegarLoop]: Abstraction has 3004 states and 4836 transitions. [2024-11-24 01:35:33,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:35:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 4836 transitions. [2024-11-24 01:35:33,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:35:33,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:33,699 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:33,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:35:33,701 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:33,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:33,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1538006610, now seen corresponding path program 1 times [2024-11-24 01:35:33,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:33,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695113242] [2024-11-24 01:35:33,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:33,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:35:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695113242] [2024-11-24 01:35:45,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695113242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:45,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:45,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:35:45,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682141220] [2024-11-24 01:35:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:45,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:35:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:45,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:35:45,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:35:45,394 INFO L87 Difference]: Start difference. First operand 3004 states and 4836 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:35:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:49,401 INFO L93 Difference]: Finished difference Result 6012 states and 9316 transitions. [2024-11-24 01:35:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:35:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-24 01:35:49,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:49,424 INFO L225 Difference]: With dead ends: 6012 [2024-11-24 01:35:49,425 INFO L226 Difference]: Without dead ends: 4870 [2024-11-24 01:35:49,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:35:49,431 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 724 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:49,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 2330 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:35:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2024-11-24 01:35:49,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 2988. [2024-11-24 01:35:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2199 states have (on average 1.5043201455206912) internal successors, (3308), 2211 states have internal predecessors, (3308), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:35:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 4812 transitions. [2024-11-24 01:35:49,771 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 4812 transitions. Word has length 456 [2024-11-24 01:35:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:49,773 INFO L471 AbstractCegarLoop]: Abstraction has 2988 states and 4812 transitions. [2024-11-24 01:35:49,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:35:49,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 4812 transitions. [2024-11-24 01:35:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:35:49,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:49,787 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:49,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:35:49,787 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:49,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1009659824, now seen corresponding path program 1 times [2024-11-24 01:35:49,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:49,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207289755] [2024-11-24 01:35:49,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:49,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:36:10,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207289755] [2024-11-24 01:36:10,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207289755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:10,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:10,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:36:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329337143] [2024-11-24 01:36:10,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:10,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:36:10,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:10,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:36:10,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:36:10,205 INFO L87 Difference]: Start difference. First operand 2988 states and 4812 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:36:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:16,492 INFO L93 Difference]: Finished difference Result 6564 states and 10288 transitions. [2024-11-24 01:36:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:36:16,493 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-24 01:36:16,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:16,513 INFO L225 Difference]: With dead ends: 6564 [2024-11-24 01:36:16,514 INFO L226 Difference]: Without dead ends: 4026 [2024-11-24 01:36:16,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:36:16,524 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 874 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:16,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 2744 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-24 01:36:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2024-11-24 01:36:16,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 3124. [2024-11-24 01:36:16,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 2335 states have (on average 1.4955032119914347) internal successors, (3492), 2347 states have internal predecessors, (3492), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:36:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4996 transitions. [2024-11-24 01:36:16,887 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4996 transitions. Word has length 456 [2024-11-24 01:36:16,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:16,890 INFO L471 AbstractCegarLoop]: Abstraction has 3124 states and 4996 transitions. [2024-11-24 01:36:16,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:36:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4996 transitions. [2024-11-24 01:36:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:36:16,899 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:16,899 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:16,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:36:16,903 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:16,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:16,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2137182032, now seen corresponding path program 1 times [2024-11-24 01:36:16,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:16,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885768500] [2024-11-24 01:36:16,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:16,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:36:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885768500] [2024-11-24 01:36:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885768500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:36,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:36:36,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007080555] [2024-11-24 01:36:36,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:36,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:36:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:36,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:36:36,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:36:36,495 INFO L87 Difference]: Start difference. First operand 3124 states and 4996 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:36:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:38,335 INFO L93 Difference]: Finished difference Result 6286 states and 9909 transitions. [2024-11-24 01:36:38,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:36:38,341 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-24 01:36:38,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:38,376 INFO L225 Difference]: With dead ends: 6286 [2024-11-24 01:36:38,376 INFO L226 Difference]: Without dead ends: 3612 [2024-11-24 01:36:38,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:36:38,385 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 525 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:38,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2025 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:36:38,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2024-11-24 01:36:38,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3036. [2024-11-24 01:36:38,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 2247 states have (on average 1.4971072541166) internal successors, (3364), 2259 states have internal predecessors, (3364), 752 states have call successors, (752), 36 states have call predecessors, (752), 36 states have return successors, (752), 740 states have call predecessors, (752), 752 states have call successors, (752) [2024-11-24 01:36:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4868 transitions. [2024-11-24 01:36:38,735 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4868 transitions. Word has length 456 [2024-11-24 01:36:38,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:38,737 INFO L471 AbstractCegarLoop]: Abstraction has 3036 states and 4868 transitions. [2024-11-24 01:36:38,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:36:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4868 transitions. [2024-11-24 01:36:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:36:38,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:38,742 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:36:38,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:36:38,742 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:38,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash -643474898, now seen corresponding path program 1 times [2024-11-24 01:36:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:38,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623660092] [2024-11-24 01:36:38,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:38,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:38:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:38:24,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:38:24,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623660092] [2024-11-24 01:38:24,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623660092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:38:24,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:38:24,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 01:38:24,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523319425] [2024-11-24 01:38:24,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:38:24,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:38:24,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:38:24,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:38:24,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:38:24,284 INFO L87 Difference]: Start difference. First operand 3036 states and 4868 transitions. Second operand has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-24 01:38:39,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:38:39,114 INFO L93 Difference]: Finished difference Result 6762 states and 10597 transitions. [2024-11-24 01:38:39,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 01:38:39,114 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) Word has length 456 [2024-11-24 01:38:39,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:38:39,138 INFO L225 Difference]: With dead ends: 6762 [2024-11-24 01:38:39,139 INFO L226 Difference]: Without dead ends: 5620 [2024-11-24 01:38:39,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=335, Invalid=1305, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 01:38:39,144 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 1453 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:38:39,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 3586 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-24 01:38:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2024-11-24 01:38:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 4432. [2024-11-24 01:38:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 3269 states have (on average 1.4781278678494953) internal successors, (4832), 3287 states have internal predecessors, (4832), 1092 states have call successors, (1092), 70 states have call predecessors, (1092), 70 states have return successors, (1092), 1074 states have call predecessors, (1092), 1092 states have call successors, (1092) [2024-11-24 01:38:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 7016 transitions. [2024-11-24 01:38:39,694 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 7016 transitions. Word has length 456 [2024-11-24 01:38:39,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:38:39,695 INFO L471 AbstractCegarLoop]: Abstraction has 4432 states and 7016 transitions. [2024-11-24 01:38:39,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.714285714285714) internal successors, (99), 21 states have internal predecessors, (99), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72) [2024-11-24 01:38:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 7016 transitions. [2024-11-24 01:38:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:38:39,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:38:39,701 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:38:39,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:38:39,701 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:38:39,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:38:39,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1184708912, now seen corresponding path program 1 times [2024-11-24 01:38:39,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:38:39,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254981754] [2024-11-24 01:38:39,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:38:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:38:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:39:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:39:49,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:39:49,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254981754] [2024-11-24 01:39:49,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254981754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:39:49,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:39:49,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:39:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797773867] [2024-11-24 01:39:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:39:49,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:39:49,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:39:49,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:39:49,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:39:49,476 INFO L87 Difference]: Start difference. First operand 4432 states and 7016 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:39:54,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:39:54,528 INFO L93 Difference]: Finished difference Result 7290 states and 11545 transitions. [2024-11-24 01:39:54,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:39:54,529 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-24 01:39:54,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:39:54,599 INFO L225 Difference]: With dead ends: 7290 [2024-11-24 01:39:54,599 INFO L226 Difference]: Without dead ends: 6148 [2024-11-24 01:39:54,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:39:54,615 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 841 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 1641 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:39:54,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 2226 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 01:39:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6148 states. [2024-11-24 01:39:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6148 to 5580. [2024-11-24 01:39:55,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 4061 states have (on average 1.4750061561191825) internal successors, (5990), 4085 states have internal predecessors, (5990), 1432 states have call successors, (1432), 86 states have call predecessors, (1432), 86 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:39:55,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 8854 transitions. [2024-11-24 01:39:55,241 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 8854 transitions. Word has length 456 [2024-11-24 01:39:55,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:39:55,242 INFO L471 AbstractCegarLoop]: Abstraction has 5580 states and 8854 transitions. [2024-11-24 01:39:55,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:39:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 8854 transitions. [2024-11-24 01:39:55,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:39:55,248 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:39:55,248 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:39:55,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:39:55,249 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:39:55,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:39:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash 504650542, now seen corresponding path program 1 times [2024-11-24 01:39:55,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:39:55,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418186101] [2024-11-24 01:39:55,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:39:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:39:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:40:03,420 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:40:03,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:40:03,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418186101] [2024-11-24 01:40:03,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418186101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:40:03,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:40:03,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:40:03,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033446229] [2024-11-24 01:40:03,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:40:03,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:40:03,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:40:03,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:40:03,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:40:03,422 INFO L87 Difference]: Start difference. First operand 5580 states and 8854 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:40:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:40:06,473 INFO L93 Difference]: Finished difference Result 8604 states and 13338 transitions. [2024-11-24 01:40:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:40:06,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-24 01:40:06,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:40:06,503 INFO L225 Difference]: With dead ends: 8604 [2024-11-24 01:40:06,504 INFO L226 Difference]: Without dead ends: 7462 [2024-11-24 01:40:06,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:40:06,511 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 596 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:40:06,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2419 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 01:40:06,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2024-11-24 01:40:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 5780. [2024-11-24 01:40:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5780 states, 4261 states have (on average 1.477118047406712) internal successors, (6294), 4285 states have internal predecessors, (6294), 1432 states have call successors, (1432), 86 states have call predecessors, (1432), 86 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:40:07,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 9158 transitions. [2024-11-24 01:40:07,205 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 9158 transitions. Word has length 456 [2024-11-24 01:40:07,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:40:07,206 INFO L471 AbstractCegarLoop]: Abstraction has 5780 states and 9158 transitions. [2024-11-24 01:40:07,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:40:07,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 9158 transitions. [2024-11-24 01:40:07,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:40:07,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:40:07,212 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:07,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:40:07,213 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:40:07,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:40:07,213 INFO L85 PathProgramCache]: Analyzing trace with hash -385309460, now seen corresponding path program 1 times [2024-11-24 01:40:07,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:40:07,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219524047] [2024-11-24 01:40:07,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:40:07,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:40:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:41:14,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:14,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219524047] [2024-11-24 01:41:14,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219524047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:14,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:14,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:41:14,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141924728] [2024-11-24 01:41:14,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:14,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:41:14,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:14,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:41:14,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:41:14,462 INFO L87 Difference]: Start difference. First operand 5780 states and 9158 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:41:22,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:22,350 INFO L93 Difference]: Finished difference Result 8792 states and 13612 transitions. [2024-11-24 01:41:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:41:22,351 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 456 [2024-11-24 01:41:22,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:22,387 INFO L225 Difference]: With dead ends: 8792 [2024-11-24 01:41:22,387 INFO L226 Difference]: Without dead ends: 7650 [2024-11-24 01:41:22,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:41:22,397 INFO L435 NwaCegarLoop]: 373 mSDtfsCounter, 763 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:22,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 3591 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-24 01:41:22,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7650 states. [2024-11-24 01:41:23,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7650 to 5860. [2024-11-24 01:41:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5860 states, 4333 states have (on average 1.4747288252942534) internal successors, (6390), 4357 states have internal predecessors, (6390), 1432 states have call successors, (1432), 94 states have call predecessors, (1432), 94 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:41:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5860 states to 5860 states and 9254 transitions. [2024-11-24 01:41:23,223 INFO L78 Accepts]: Start accepts. Automaton has 5860 states and 9254 transitions. Word has length 456 [2024-11-24 01:41:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:23,224 INFO L471 AbstractCegarLoop]: Abstraction has 5860 states and 9254 transitions. [2024-11-24 01:41:23,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:41:23,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5860 states and 9254 transitions. [2024-11-24 01:41:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-24 01:41:23,230 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:23,230 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:23,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:41:23,230 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:23,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:23,232 INFO L85 PathProgramCache]: Analyzing trace with hash -984484882, now seen corresponding path program 1 times [2024-11-24 01:41:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949646469] [2024-11-24 01:41:23,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:23,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:41:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:41:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:41:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949646469] [2024-11-24 01:41:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949646469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:41:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:41:42,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:41:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483804689] [2024-11-24 01:41:42,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:41:42,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:41:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:41:42,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:41:42,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:41:42,041 INFO L87 Difference]: Start difference. First operand 5860 states and 9254 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:41:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:41:44,769 INFO L93 Difference]: Finished difference Result 11092 states and 17238 transitions. [2024-11-24 01:41:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:41:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 456 [2024-11-24 01:41:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:41:44,794 INFO L225 Difference]: With dead ends: 11092 [2024-11-24 01:41:44,795 INFO L226 Difference]: Without dead ends: 7294 [2024-11-24 01:41:44,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:41:44,808 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 496 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:41:44,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 2360 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:41:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2024-11-24 01:41:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 5876. [2024-11-24 01:41:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 4349 states have (on average 1.4729822947804092) internal successors, (6406), 4373 states have internal predecessors, (6406), 1432 states have call successors, (1432), 94 states have call predecessors, (1432), 94 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:41:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 9270 transitions. [2024-11-24 01:41:45,535 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 9270 transitions. Word has length 456 [2024-11-24 01:41:45,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:41:45,536 INFO L471 AbstractCegarLoop]: Abstraction has 5876 states and 9270 transitions. [2024-11-24 01:41:45,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:41:45,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 9270 transitions. [2024-11-24 01:41:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:41:45,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:41:45,541 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:41:45,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:41:45,542 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:41:45,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:41:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash -533976962, now seen corresponding path program 1 times [2024-11-24 01:41:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:41:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469330466] [2024-11-24 01:41:45,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:41:45,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:41:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:42:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:42:53,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:42:53,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469330466] [2024-11-24 01:42:53,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469330466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:42:53,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:42:53,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:42:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111376431] [2024-11-24 01:42:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:42:53,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:42:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:42:53,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:42:53,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:42:53,213 INFO L87 Difference]: Start difference. First operand 5876 states and 9270 transitions. Second operand has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:43:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:43:02,342 INFO L93 Difference]: Finished difference Result 8406 states and 13019 transitions. [2024-11-24 01:43:02,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:43:02,343 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 457 [2024-11-24 01:43:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:43:02,371 INFO L225 Difference]: With dead ends: 8406 [2024-11-24 01:43:02,372 INFO L226 Difference]: Without dead ends: 7264 [2024-11-24 01:43:02,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:43:02,379 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 1316 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:43:02,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 3238 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-24 01:43:02,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7264 states. [2024-11-24 01:43:03,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7264 to 5972. [2024-11-24 01:43:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5972 states, 4437 states have (on average 1.4690105927428443) internal successors, (6518), 4461 states have internal predecessors, (6518), 1432 states have call successors, (1432), 102 states have call predecessors, (1432), 102 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:43:03,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5972 states to 5972 states and 9382 transitions. [2024-11-24 01:43:03,116 INFO L78 Accepts]: Start accepts. Automaton has 5972 states and 9382 transitions. Word has length 457 [2024-11-24 01:43:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:43:03,117 INFO L471 AbstractCegarLoop]: Abstraction has 5972 states and 9382 transitions. [2024-11-24 01:43:03,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.555555555555555) internal successors, (100), 18 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:43:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5972 states and 9382 transitions. [2024-11-24 01:43:03,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:43:03,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:43:03,123 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:03,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:43:03,123 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:43:03,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:43:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash 305146300, now seen corresponding path program 1 times [2024-11-24 01:43:03,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:43:03,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280010817] [2024-11-24 01:43:03,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:43:03,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:43:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:44:13,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:13,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280010817] [2024-11-24 01:44:13,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280010817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:13,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:13,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:44:13,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966911555] [2024-11-24 01:44:13,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:13,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:44:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:13,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:44:13,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:44:13,018 INFO L87 Difference]: Start difference. First operand 5972 states and 9382 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:44:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:19,275 INFO L93 Difference]: Finished difference Result 8660 states and 13335 transitions. [2024-11-24 01:44:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:44:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 457 [2024-11-24 01:44:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:19,309 INFO L225 Difference]: With dead ends: 8660 [2024-11-24 01:44:19,310 INFO L226 Difference]: Without dead ends: 7518 [2024-11-24 01:44:19,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:44:19,319 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 748 mSDsluCounter, 2639 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:19,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2964 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-24 01:44:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2024-11-24 01:44:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 6016. [2024-11-24 01:44:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6016 states, 4480 states have (on average 1.4698660714285714) internal successors, (6585), 4504 states have internal predecessors, (6585), 1432 states have call successors, (1432), 103 states have call predecessors, (1432), 103 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:44:20,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 9449 transitions. [2024-11-24 01:44:20,051 INFO L78 Accepts]: Start accepts. Automaton has 6016 states and 9449 transitions. Word has length 457 [2024-11-24 01:44:20,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:20,051 INFO L471 AbstractCegarLoop]: Abstraction has 6016 states and 9449 transitions. [2024-11-24 01:44:20,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:44:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6016 states and 9449 transitions. [2024-11-24 01:44:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:44:20,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:20,057 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:20,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:44:20,057 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:20,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash 698173310, now seen corresponding path program 1 times [2024-11-24 01:44:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525702943] [2024-11-24 01:44:20,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:44:41,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:41,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525702943] [2024-11-24 01:44:41,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525702943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:41,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:41,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:44:41,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680534536] [2024-11-24 01:44:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:41,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:44:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:41,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:44:41,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:44:41,995 INFO L87 Difference]: Start difference. First operand 6016 states and 9449 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:44:48,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:48,631 INFO L93 Difference]: Finished difference Result 9404 states and 14343 transitions. [2024-11-24 01:44:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:44:48,631 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 457 [2024-11-24 01:44:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:48,654 INFO L225 Difference]: With dead ends: 9404 [2024-11-24 01:44:48,654 INFO L226 Difference]: Without dead ends: 8262 [2024-11-24 01:44:48,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:44:48,660 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 1201 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 2484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:48,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2890 Invalid, 2484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 01:44:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8262 states. [2024-11-24 01:44:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8262 to 6024. [2024-11-24 01:44:49,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6024 states, 4488 states have (on average 1.4708110516934045) internal successors, (6601), 4512 states have internal predecessors, (6601), 1432 states have call successors, (1432), 103 states have call predecessors, (1432), 103 states have return successors, (1432), 1408 states have call predecessors, (1432), 1432 states have call successors, (1432) [2024-11-24 01:44:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6024 states to 6024 states and 9465 transitions. [2024-11-24 01:44:49,311 INFO L78 Accepts]: Start accepts. Automaton has 6024 states and 9465 transitions. Word has length 457 [2024-11-24 01:44:49,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:49,311 INFO L471 AbstractCegarLoop]: Abstraction has 6024 states and 9465 transitions. [2024-11-24 01:44:49,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:44:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6024 states and 9465 transitions. [2024-11-24 01:44:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:44:49,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:49,314 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:49,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:44:49,314 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:49,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1120782976, now seen corresponding path program 1 times [2024-11-24 01:44:49,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:49,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155492395] [2024-11-24 01:44:49,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:44:49,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:44:49,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:44:49,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155492395] [2024-11-24 01:44:49,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155492395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:44:49,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:44:49,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:44:49,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528658454] [2024-11-24 01:44:49,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:44:49,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:44:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:44:49,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:44:49,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:44:49,826 INFO L87 Difference]: Start difference. First operand 6024 states and 9465 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:44:50,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:44:50,369 INFO L93 Difference]: Finished difference Result 12604 states and 19411 transitions. [2024-11-24 01:44:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:44:50,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-24 01:44:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:44:50,390 INFO L225 Difference]: With dead ends: 12604 [2024-11-24 01:44:50,390 INFO L226 Difference]: Without dead ends: 7306 [2024-11-24 01:44:50,402 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 01:44:50,402 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 39 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:44:50,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1103 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:44:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7306 states. [2024-11-24 01:44:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7306 to 6920. [2024-11-24 01:44:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6920 states, 5248 states have (on average 1.4361661585365855) internal successors, (7537), 5296 states have internal predecessors, (7537), 1528 states have call successors, (1528), 143 states have call predecessors, (1528), 143 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:44:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6920 states to 6920 states and 10593 transitions. [2024-11-24 01:44:51,119 INFO L78 Accepts]: Start accepts. Automaton has 6920 states and 10593 transitions. Word has length 457 [2024-11-24 01:44:51,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:44:51,120 INFO L471 AbstractCegarLoop]: Abstraction has 6920 states and 10593 transitions. [2024-11-24 01:44:51,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:44:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 6920 states and 10593 transitions. [2024-11-24 01:44:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:44:51,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:44:51,126 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:44:51,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:44:51,126 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:44:51,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:44:51,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1779615422, now seen corresponding path program 1 times [2024-11-24 01:44:51,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:44:51,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889820753] [2024-11-24 01:44:51,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:44:51,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:44:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:45:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889820753] [2024-11-24 01:45:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889820753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:45:19,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:45:19,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:45:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135883777] [2024-11-24 01:45:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:45:19,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:45:19,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:45:19,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:45:19,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:45:19,821 INFO L87 Difference]: Start difference. First operand 6920 states and 10593 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:45:24,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:45:24,467 INFO L93 Difference]: Finished difference Result 13320 states and 20025 transitions. [2024-11-24 01:45:24,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:45:24,468 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 457 [2024-11-24 01:45:24,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:45:24,487 INFO L225 Difference]: With dead ends: 13320 [2024-11-24 01:45:24,488 INFO L226 Difference]: Without dead ends: 8594 [2024-11-24 01:45:24,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:45:24,498 INFO L435 NwaCegarLoop]: 356 mSDtfsCounter, 596 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 2911 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:45:24,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 2911 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 01:45:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2024-11-24 01:45:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 6904. [2024-11-24 01:45:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 5232 states have (on average 1.4359709480122325) internal successors, (7513), 5280 states have internal predecessors, (7513), 1528 states have call successors, (1528), 143 states have call predecessors, (1528), 143 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:45:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 10569 transitions. [2024-11-24 01:45:25,101 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 10569 transitions. Word has length 457 [2024-11-24 01:45:25,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:45:25,101 INFO L471 AbstractCegarLoop]: Abstraction has 6904 states and 10569 transitions. [2024-11-24 01:45:25,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:45:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 10569 transitions. [2024-11-24 01:45:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:45:25,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:45:25,106 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:25,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:45:25,107 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:45:25,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:45:25,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2072046592, now seen corresponding path program 1 times [2024-11-24 01:45:25,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:45:25,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058051793] [2024-11-24 01:45:25,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:25,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:45:38,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:38,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058051793] [2024-11-24 01:45:38,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058051793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:45:38,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:45:38,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:45:38,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843621945] [2024-11-24 01:45:38,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:45:38,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:45:38,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:45:38,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:45:38,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:45:38,990 INFO L87 Difference]: Start difference. First operand 6904 states and 10569 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:45:41,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:45:41,739 INFO L93 Difference]: Finished difference Result 8684 states and 13299 transitions. [2024-11-24 01:45:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:45:41,740 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-24 01:45:41,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:45:41,766 INFO L225 Difference]: With dead ends: 8684 [2024-11-24 01:45:41,766 INFO L226 Difference]: Without dead ends: 7302 [2024-11-24 01:45:41,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:45:41,776 INFO L435 NwaCegarLoop]: 355 mSDtfsCounter, 644 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:45:41,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1807 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:45:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2024-11-24 01:45:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6816. [2024-11-24 01:45:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6816 states, 5144 states have (on average 1.4356531881804044) internal successors, (7385), 5192 states have internal predecessors, (7385), 1528 states have call successors, (1528), 143 states have call predecessors, (1528), 143 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:45:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6816 states to 6816 states and 10441 transitions. [2024-11-24 01:45:42,406 INFO L78 Accepts]: Start accepts. Automaton has 6816 states and 10441 transitions. Word has length 457 [2024-11-24 01:45:42,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:45:42,407 INFO L471 AbstractCegarLoop]: Abstraction has 6816 states and 10441 transitions. [2024-11-24 01:45:42,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:45:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6816 states and 10441 transitions. [2024-11-24 01:45:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:45:42,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:45:42,413 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:42,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:45:42,413 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:45:42,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:45:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -447913342, now seen corresponding path program 1 times [2024-11-24 01:45:42,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:45:42,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68960325] [2024-11-24 01:45:42,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:42,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:45:43,942 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:45:43,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:45:43,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68960325] [2024-11-24 01:45:43,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68960325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:45:43,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:45:43,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:45:43,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303271640] [2024-11-24 01:45:43,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:45:43,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:45:43,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:45:43,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:45:43,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:45:43,944 INFO L87 Difference]: Start difference. First operand 6816 states and 10441 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:45:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:45:46,053 INFO L93 Difference]: Finished difference Result 10518 states and 15892 transitions. [2024-11-24 01:45:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:45:46,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) Word has length 457 [2024-11-24 01:45:46,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:45:46,073 INFO L225 Difference]: With dead ends: 10518 [2024-11-24 01:45:46,073 INFO L226 Difference]: Without dead ends: 9136 [2024-11-24 01:45:46,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:45:46,078 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 252 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:45:46,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 1950 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:45:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9136 states. [2024-11-24 01:45:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9136 to 7216. [2024-11-24 01:45:46,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7216 states, 5544 states have (on average 1.4402958152958152) internal successors, (7985), 5592 states have internal predecessors, (7985), 1528 states have call successors, (1528), 143 states have call predecessors, (1528), 143 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:45:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7216 states to 7216 states and 11041 transitions. [2024-11-24 01:45:46,718 INFO L78 Accepts]: Start accepts. Automaton has 7216 states and 11041 transitions. Word has length 457 [2024-11-24 01:45:46,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:45:46,718 INFO L471 AbstractCegarLoop]: Abstraction has 7216 states and 11041 transitions. [2024-11-24 01:45:46,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 1 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 1 states have call predecessors, (72), 1 states have call successors, (72) [2024-11-24 01:45:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 7216 states and 11041 transitions. [2024-11-24 01:45:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:45:46,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:45:46,724 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:45:46,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:45:46,724 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:45:46,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:45:46,725 INFO L85 PathProgramCache]: Analyzing trace with hash 391209920, now seen corresponding path program 1 times [2024-11-24 01:45:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:45:46,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269178746] [2024-11-24 01:45:46,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:45:46,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:45:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:46:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:46:01,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:01,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269178746] [2024-11-24 01:46:01,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269178746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:46:01,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:46:01,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:46:01,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864311993] [2024-11-24 01:46:01,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:46:01,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:46:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:46:01,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:46:01,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:46:01,396 INFO L87 Difference]: Start difference. First operand 7216 states and 11041 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:46:06,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:46:06,505 INFO L93 Difference]: Finished difference Result 10722 states and 16070 transitions. [2024-11-24 01:46:06,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:46:06,506 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 457 [2024-11-24 01:46:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:46:06,528 INFO L225 Difference]: With dead ends: 10722 [2024-11-24 01:46:06,528 INFO L226 Difference]: Without dead ends: 9164 [2024-11-24 01:46:06,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:46:06,534 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 582 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:46:06,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 2259 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 01:46:06,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9164 states. [2024-11-24 01:46:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9164 to 7240. [2024-11-24 01:46:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 5568 states have (on average 1.441271551724138) internal successors, (8025), 5616 states have internal predecessors, (8025), 1528 states have call successors, (1528), 143 states have call predecessors, (1528), 143 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:46:07,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 11081 transitions. [2024-11-24 01:46:07,099 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 11081 transitions. Word has length 457 [2024-11-24 01:46:07,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:46:07,100 INFO L471 AbstractCegarLoop]: Abstraction has 7240 states and 11081 transitions. [2024-11-24 01:46:07,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 2 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-24 01:46:07,100 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 11081 transitions. [2024-11-24 01:46:07,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:46:07,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:46:07,106 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:07,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:46:07,106 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:46:07,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:46:07,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1734482877, now seen corresponding path program 1 times [2024-11-24 01:46:07,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:46:07,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146438443] [2024-11-24 01:46:07,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:46:07,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:46:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:46:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:46:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146438443] [2024-11-24 01:46:27,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146438443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:46:27,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:46:27,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:46:27,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390505097] [2024-11-24 01:46:27,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:46:27,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:46:27,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:46:27,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:46:27,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:46:27,920 INFO L87 Difference]: Start difference. First operand 7240 states and 11081 transitions. Second operand has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:46:34,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:46:34,878 INFO L93 Difference]: Finished difference Result 9630 states and 14660 transitions. [2024-11-24 01:46:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:46:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 457 [2024-11-24 01:46:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:46:34,904 INFO L225 Difference]: With dead ends: 9630 [2024-11-24 01:46:34,904 INFO L226 Difference]: Without dead ends: 8072 [2024-11-24 01:46:34,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:46:34,913 INFO L435 NwaCegarLoop]: 343 mSDtfsCounter, 950 mSDsluCounter, 2557 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:46:34,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2900 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 01:46:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2024-11-24 01:46:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7384. [2024-11-24 01:46:35,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7384 states, 5696 states have (on average 1.438377808988764) internal successors, (8193), 5744 states have internal predecessors, (8193), 1528 states have call successors, (1528), 159 states have call predecessors, (1528), 159 states have return successors, (1528), 1480 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-11-24 01:46:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7384 states to 7384 states and 11249 transitions. [2024-11-24 01:46:35,509 INFO L78 Accepts]: Start accepts. Automaton has 7384 states and 11249 transitions. Word has length 457 [2024-11-24 01:46:35,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:46:35,509 INFO L471 AbstractCegarLoop]: Abstraction has 7384 states and 11249 transitions. [2024-11-24 01:46:35,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 states have internal predecessors, (100), 3 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2024-11-24 01:46:35,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7384 states and 11249 transitions. [2024-11-24 01:46:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-24 01:46:35,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:46:35,513 INFO L218 NwaCegarLoop]: trace histogram [72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:35,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:46:35,514 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:46:35,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:46:35,514 INFO L85 PathProgramCache]: Analyzing trace with hash 90671680, now seen corresponding path program 1 times [2024-11-24 01:46:35,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:46:35,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441662027] [2024-11-24 01:46:35,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:46:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:46:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:46:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2024-11-24 01:46:52,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:46:52,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441662027] [2024-11-24 01:46:52,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441662027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:46:52,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:46:52,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 01:46:52,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147978079] [2024-11-24 01:46:52,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:46:52,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:46:52,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:46:52,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:46:52,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:46:52,803 INFO L87 Difference]: Start difference. First operand 7384 states and 11249 transitions. Second operand has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 4 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 4 states have call predecessors, (72), 4 states have call successors, (72)