./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_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_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/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_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/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_80ac8a55-a972-4bb6-8254-ef3466010ab0/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 8880bc6b55ab6b26a36a9709c52577c78f4355aea8bee56c9643da00ec93f3ee --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:51:49,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:51:49,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:51:49,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:51:49,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:51:49,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:51:49,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:51:49,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:51:49,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:51:49,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:51:49,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:51:49,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:51:49,942 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:51:49,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:51:49,942 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:51:49,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:51:49,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:51:49,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:51:49,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:51:49,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:51:49,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:51:49,944 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:51:49,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:49,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:49,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:51:49,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:51:49,946 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:51:49,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:51:49,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:51:49,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:51:49,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:51:49,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:51:49,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:51:49,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:51:49,949 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_80ac8a55-a972-4bb6-8254-ef3466010ab0/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 -> 8880bc6b55ab6b26a36a9709c52577c78f4355aea8bee56c9643da00ec93f3ee [2024-11-24 01:51:50,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:51:50,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:51:50,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:51:50,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:51:50,342 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:51:50,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2024-11-24 01:51:54,075 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/data/377041f83/f9c712463aa54b898de5110308c33e80/FLAG3b41b7d81 [2024-11-24 01:51:54,393 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:51:54,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2024-11-24 01:51:54,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/data/377041f83/f9c712463aa54b898de5110308c33e80/FLAG3b41b7d81 [2024-11-24 01:51:54,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/data/377041f83/f9c712463aa54b898de5110308c33e80 [2024-11-24 01:51:54,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:51:54,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:51:54,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:51:54,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:51:54,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:51:54,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:51:54" (1/1) ... [2024-11-24 01:51:54,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eb0e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:54, skipping insertion in model container [2024-11-24 01:51:54,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:51:54" (1/1) ... [2024-11-24 01:51:54,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:51:54,722 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_80ac8a55-a972-4bb6-8254-ef3466010ab0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i[919,932] [2024-11-24 01:51:54,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:51:54,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:51:54,936 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_80ac8a55-a972-4bb6-8254-ef3466010ab0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i[919,932] [2024-11-24 01:51:55,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:51:55,051 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:51:55,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55 WrapperNode [2024-11-24 01:51:55,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:51:55,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:51:55,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:51:55,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:51:55,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,151 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 317 [2024-11-24 01:51:55,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:51:55,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:51:55,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:51:55,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:51:55,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,232 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 01:51:55,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,251 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:51:55,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:51:55,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:51:55,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:51:55,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (1/1) ... [2024-11-24 01:51:55,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:51:55,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:51:55,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:51:55,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:51:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:51:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:51:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:51:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:51:55,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:51:55,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:51:55,508 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:51:55,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:51:56,518 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-24 01:51:56,518 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:51:56,545 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:51:56,546 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:51:56,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:51:56 BoogieIcfgContainer [2024-11-24 01:51:56,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:51:56,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:51:56,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:51:56,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:51:56,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:51:54" (1/3) ... [2024-11-24 01:51:56,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e2e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:51:56, skipping insertion in model container [2024-11-24 01:51:56,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:51:55" (2/3) ... [2024-11-24 01:51:56,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e2e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:51:56, skipping insertion in model container [2024-11-24 01:51:56,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:51:56" (3/3) ... [2024-11-24 01:51:56,564 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i [2024-11-24 01:51:56,586 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:51:56,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-10.i that has 2 procedures, 139 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:51:56,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:51:56,699 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;@7c01ed74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:51:56,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:51:56,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 94 states have (on average 1.425531914893617) internal successors, (134), 95 states have internal predecessors, (134), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 01:51:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-24 01:51:56,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:56,731 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:51:56,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:56,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash -540524557, now seen corresponding path program 1 times [2024-11-24 01:51:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465833620] [2024-11-24 01:51:56,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:51:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2024-11-24 01:51:57,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:51:57,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465833620] [2024-11-24 01:51:57,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465833620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:51:57,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650316585] [2024-11-24 01:51:57,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:57,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:51:57,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:51:57,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:51:57,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:51:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:57,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:51:57,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:51:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2024-11-24 01:51:57,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:51:57,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1650316585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:51:57,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:51:57,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:51:57,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058994497] [2024-11-24 01:51:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:51:58,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:51:58,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:51:58,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:51:58,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:51:58,045 INFO L87 Difference]: Start difference. First operand has 139 states, 94 states have (on average 1.425531914893617) internal successors, (134), 95 states have internal predecessors, (134), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:51:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:58,126 INFO L93 Difference]: Finished difference Result 271 states and 472 transitions. [2024-11-24 01:51:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:51:58,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 263 [2024-11-24 01:51:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:58,140 INFO L225 Difference]: With dead ends: 271 [2024-11-24 01:51:58,140 INFO L226 Difference]: Without dead ends: 135 [2024-11-24 01:51:58,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 264 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 01:51:58,153 INFO L435 NwaCegarLoop]: 211 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, 211 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 01:51:58,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:51:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-24 01:51:58,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-24 01:51:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 91 states have internal predecessors, (127), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 01:51:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 211 transitions. [2024-11-24 01:51:58,248 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 211 transitions. Word has length 263 [2024-11-24 01:51:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:58,249 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 211 transitions. [2024-11-24 01:51:58,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:51:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 211 transitions. [2024-11-24 01:51:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-24 01:51:58,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:58,266 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:51:58,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:51:58,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:51:58,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:58,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1472034875, now seen corresponding path program 1 times [2024-11-24 01:51:58,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:58,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715754687] [2024-11-24 01:51:58,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:51:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:51:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:51:59,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715754687] [2024-11-24 01:51:59,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715754687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:51:59,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:51:59,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:51:59,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185140553] [2024-11-24 01:51:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:51:59,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:51:59,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:51:59,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:51:59,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:51:59,613 INFO L87 Difference]: Start difference. First operand 135 states and 211 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:51:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:59,723 INFO L93 Difference]: Finished difference Result 368 states and 582 transitions. [2024-11-24 01:51:59,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:51:59,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-24 01:51:59,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:59,729 INFO L225 Difference]: With dead ends: 368 [2024-11-24 01:51:59,730 INFO L226 Difference]: Without dead ends: 236 [2024-11-24 01:51:59,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 01:51:59,732 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 91 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:59,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 401 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:51:59,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-24 01:51:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 216. [2024-11-24 01:51:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 129 states have (on average 1.3255813953488371) internal successors, (171), 129 states have internal predecessors, (171), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:51:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 339 transitions. [2024-11-24 01:51:59,801 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 339 transitions. Word has length 263 [2024-11-24 01:51:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:59,805 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 339 transitions. [2024-11-24 01:51:59,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:51:59,806 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 339 transitions. [2024-11-24 01:51:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-24 01:51:59,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:59,816 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:51:59,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:51:59,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:59,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash -467416965, now seen corresponding path program 1 times [2024-11-24 01:51:59,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:59,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263474368] [2024-11-24 01:51:59,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:51:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:52:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:52:00,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:52:00,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263474368] [2024-11-24 01:52:00,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263474368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:52:00,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:52:00,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:52:00,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187783662] [2024-11-24 01:52:00,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:52:00,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:52:00,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:52:00,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:52:00,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:52:00,735 INFO L87 Difference]: Start difference. First operand 216 states and 339 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:52:01,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:52:01,205 INFO L93 Difference]: Finished difference Result 400 states and 625 transitions. [2024-11-24 01:52:01,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:52:01,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 263 [2024-11-24 01:52:01,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:52:01,213 INFO L225 Difference]: With dead ends: 400 [2024-11-24 01:52:01,215 INFO L226 Difference]: Without dead ends: 268 [2024-11-24 01:52:01,217 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 01:52:01,220 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 164 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:52:01,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 601 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:52:01,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-24 01:52:01,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 234. [2024-11-24 01:52:01,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 147 states have internal predecessors, (199), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-24 01:52:01,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 367 transitions. [2024-11-24 01:52:01,285 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 367 transitions. Word has length 263 [2024-11-24 01:52:01,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:52:01,287 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 367 transitions. [2024-11-24 01:52:01,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:52:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 367 transitions. [2024-11-24 01:52:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:52:01,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:52:01,293 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:52:01,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:52:01,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:52:01,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:52:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1524347362, now seen corresponding path program 1 times [2024-11-24 01:52:01,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:52:01,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034873349] [2024-11-24 01:52:01,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:52:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:52:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:52:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:52:35,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:52:35,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034873349] [2024-11-24 01:52:35,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034873349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:52:35,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:52:35,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:52:35,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16962454] [2024-11-24 01:52:35,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:52:35,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:52:35,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:52:35,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:52:35,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:52:35,762 INFO L87 Difference]: Start difference. First operand 234 states and 367 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:52:38,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:52:38,682 INFO L93 Difference]: Finished difference Result 606 states and 923 transitions. [2024-11-24 01:52:38,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:52:38,684 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 264 [2024-11-24 01:52:38,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:52:38,692 INFO L225 Difference]: With dead ends: 606 [2024-11-24 01:52:38,694 INFO L226 Difference]: Without dead ends: 474 [2024-11-24 01:52:38,696 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:52:38,697 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 551 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:52:38,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1121 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 01:52:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-24 01:52:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 363. [2024-11-24 01:52:38,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 230 states have (on average 1.317391304347826) internal successors, (303), 231 states have internal predecessors, (303), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 01:52:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 555 transitions. [2024-11-24 01:52:38,801 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 555 transitions. Word has length 264 [2024-11-24 01:52:38,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:52:38,806 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 555 transitions. [2024-11-24 01:52:38,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:52:38,806 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 555 transitions. [2024-11-24 01:52:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:52:38,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:52:38,811 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:52:38,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:52:38,812 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:52:38,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:52:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1183337378, now seen corresponding path program 1 times [2024-11-24 01:52:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:52:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615859320] [2024-11-24 01:52:38,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:52:38,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:52:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:53:11,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:53:11,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615859320] [2024-11-24 01:53:11,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615859320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:53:11,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:53:11,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:53:11,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206169681] [2024-11-24 01:53:11,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:53:11,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:53:11,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:53:11,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:53:11,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:53:11,104 INFO L87 Difference]: Start difference. First operand 363 states and 555 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:53:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:14,269 INFO L93 Difference]: Finished difference Result 775 states and 1158 transitions. [2024-11-24 01:53:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:53:14,272 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 264 [2024-11-24 01:53:14,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:14,278 INFO L225 Difference]: With dead ends: 775 [2024-11-24 01:53:14,279 INFO L226 Difference]: Without dead ends: 489 [2024-11-24 01:53:14,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=183, Invalid=323, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:53:14,281 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 518 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:53:14,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1123 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:53:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-24 01:53:14,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 376. [2024-11-24 01:53:14,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 243 states have (on average 1.3209876543209877) internal successors, (321), 244 states have internal predecessors, (321), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 01:53:14,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 573 transitions. [2024-11-24 01:53:14,336 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 573 transitions. Word has length 264 [2024-11-24 01:53:14,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:14,337 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 573 transitions. [2024-11-24 01:53:14,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:53:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 573 transitions. [2024-11-24 01:53:14,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:53:14,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:14,343 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:14,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:53:14,343 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:53:14,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:14,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1963504478, now seen corresponding path program 1 times [2024-11-24 01:53:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:53:14,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154303140] [2024-11-24 01:53:14,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:53:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:53:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:53:34,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:53:34,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154303140] [2024-11-24 01:53:34,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154303140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:53:34,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:53:34,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:53:34,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019301614] [2024-11-24 01:53:34,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:53:34,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:53:34,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:53:34,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:53:34,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:53:34,863 INFO L87 Difference]: Start difference. First operand 376 states and 573 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:53:36,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:36,459 INFO L93 Difference]: Finished difference Result 760 states and 1140 transitions. [2024-11-24 01:53:36,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:53:36,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 264 [2024-11-24 01:53:36,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:36,465 INFO L225 Difference]: With dead ends: 760 [2024-11-24 01:53:36,466 INFO L226 Difference]: Without dead ends: 461 [2024-11-24 01:53:36,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:53:36,474 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 470 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:53:36,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1163 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:53:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-24 01:53:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 365. [2024-11-24 01:53:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 232 states have (on average 1.3146551724137931) internal successors, (305), 233 states have internal predecessors, (305), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-24 01:53:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 557 transitions. [2024-11-24 01:53:36,536 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 557 transitions. Word has length 264 [2024-11-24 01:53:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:36,538 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 557 transitions. [2024-11-24 01:53:36,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:53:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 557 transitions. [2024-11-24 01:53:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:53:36,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:36,545 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:53:36,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:53:36,546 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:53:36,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:36,546 INFO L85 PathProgramCache]: Analyzing trace with hash -469797344, now seen corresponding path program 1 times [2024-11-24 01:53:36,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:53:36,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530502152] [2024-11-24 01:53:36,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:53:36,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:53:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:54:47,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:47,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530502152] [2024-11-24 01:54:47,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530502152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:47,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:47,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:54:47,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111154453] [2024-11-24 01:54:47,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:47,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:54:47,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:47,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:54:47,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:54:47,030 INFO L87 Difference]: Start difference. First operand 365 states and 557 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:54:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:51,097 INFO L93 Difference]: Finished difference Result 796 states and 1206 transitions. [2024-11-24 01:54:51,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:54:51,098 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 264 [2024-11-24 01:54:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:51,105 INFO L225 Difference]: With dead ends: 796 [2024-11-24 01:54:51,105 INFO L226 Difference]: Without dead ends: 664 [2024-11-24 01:54:51,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:54:51,107 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 663 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:51,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 1375 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:54:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-24 01:54:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 533. [2024-11-24 01:54:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 355 states have (on average 1.3380281690140845) internal successors, (475), 355 states have internal predecessors, (475), 168 states have call successors, (168), 9 states have call predecessors, (168), 9 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-24 01:54:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 811 transitions. [2024-11-24 01:54:51,223 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 811 transitions. Word has length 264 [2024-11-24 01:54:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:51,224 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 811 transitions. [2024-11-24 01:54:51,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:54:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 811 transitions. [2024-11-24 01:54:51,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-24 01:54:51,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:51,227 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:54:51,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:54:51,227 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:51,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash -810807328, now seen corresponding path program 1 times [2024-11-24 01:54:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:51,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520452510] [2024-11-24 01:54:51,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:55:13,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520452510] [2024-11-24 01:55:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520452510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:13,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:55:13,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635054882] [2024-11-24 01:55:13,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:13,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:55:13,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:13,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:55:13,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:55:13,120 INFO L87 Difference]: Start difference. First operand 533 states and 811 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:55:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:15,252 INFO L93 Difference]: Finished difference Result 1032 states and 1563 transitions. [2024-11-24 01:55:15,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:55:15,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 264 [2024-11-24 01:55:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:15,263 INFO L225 Difference]: With dead ends: 1032 [2024-11-24 01:55:15,263 INFO L226 Difference]: Without dead ends: 750 [2024-11-24 01:55:15,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:55:15,266 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 358 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:15,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1182 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:55:15,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-24 01:55:15,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 686. [2024-11-24 01:55:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 463 states have (on average 1.3369330453563715) internal successors, (619), 463 states have internal predecessors, (619), 210 states have call successors, (210), 12 states have call predecessors, (210), 12 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-24 01:55:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1039 transitions. [2024-11-24 01:55:15,359 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1039 transitions. Word has length 264 [2024-11-24 01:55:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:15,361 INFO L471 AbstractCegarLoop]: Abstraction has 686 states and 1039 transitions. [2024-11-24 01:55:15,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:55:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1039 transitions. [2024-11-24 01:55:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:55:15,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:15,366 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:15,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:55:15,367 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:15,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash 555059664, now seen corresponding path program 1 times [2024-11-24 01:55:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:15,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856036841] [2024-11-24 01:55:15,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:15,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:56:20,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:20,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856036841] [2024-11-24 01:56:20,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856036841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:20,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:20,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:56:20,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975511793] [2024-11-24 01:56:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:20,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:56:20,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:20,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:56:20,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:56:20,487 INFO L87 Difference]: Start difference. First operand 686 states and 1039 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:56:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:24,482 INFO L93 Difference]: Finished difference Result 1023 states and 1522 transitions. [2024-11-24 01:56:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:56:24,483 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 265 [2024-11-24 01:56:24,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:24,490 INFO L225 Difference]: With dead ends: 1023 [2024-11-24 01:56:24,490 INFO L226 Difference]: Without dead ends: 891 [2024-11-24 01:56:24,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:56:24,493 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 542 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:24,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 1113 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 01:56:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-24 01:56:24,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 703. [2024-11-24 01:56:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 480 states have (on average 1.34375) internal successors, (645), 480 states have internal predecessors, (645), 210 states have call successors, (210), 12 states have call predecessors, (210), 12 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-24 01:56:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1065 transitions. [2024-11-24 01:56:24,592 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1065 transitions. Word has length 265 [2024-11-24 01:56:24,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:24,592 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 1065 transitions. [2024-11-24 01:56:24,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:56:24,593 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1065 transitions. [2024-11-24 01:56:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:56:24,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:24,596 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:24,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:56:24,596 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:24,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:24,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1964900270, now seen corresponding path program 1 times [2024-11-24 01:56:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471913356] [2024-11-24 01:56:24,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:24,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:56:25,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:25,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471913356] [2024-11-24 01:56:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471913356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:25,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:56:25,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181364442] [2024-11-24 01:56:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:25,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:56:25,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:25,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:56:25,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:56:25,195 INFO L87 Difference]: Start difference. First operand 703 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:56:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:25,482 INFO L93 Difference]: Finished difference Result 1269 states and 1910 transitions. [2024-11-24 01:56:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:56:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 265 [2024-11-24 01:56:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:25,490 INFO L225 Difference]: With dead ends: 1269 [2024-11-24 01:56:25,494 INFO L226 Difference]: Without dead ends: 834 [2024-11-24 01:56:25,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:56:25,498 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:25,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 380 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:56:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-24 01:56:25,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 789. [2024-11-24 01:56:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 562 states have (on average 1.3505338078291815) internal successors, (759), 563 states have internal predecessors, (759), 212 states have call successors, (212), 14 states have call predecessors, (212), 14 states have return successors, (212), 211 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-24 01:56:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1183 transitions. [2024-11-24 01:56:25,659 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1183 transitions. Word has length 265 [2024-11-24 01:56:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:25,660 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1183 transitions. [2024-11-24 01:56:25,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:56:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1183 transitions. [2024-11-24 01:56:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:56:25,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:25,663 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:25,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:56:25,663 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:25,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash -31746350, now seen corresponding path program 1 times [2024-11-24 01:56:25,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:25,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168130047] [2024-11-24 01:56:25,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:25,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:56:25,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:25,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168130047] [2024-11-24 01:56:25,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168130047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:25,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:25,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:56:25,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146652053] [2024-11-24 01:56:25,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:25,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:56:25,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:25,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:56:25,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:56:25,988 INFO L87 Difference]: Start difference. First operand 789 states and 1183 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:56:26,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:26,177 INFO L93 Difference]: Finished difference Result 1639 states and 2421 transitions. [2024-11-24 01:56:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:56:26,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 265 [2024-11-24 01:56:26,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:26,185 INFO L225 Difference]: With dead ends: 1639 [2024-11-24 01:56:26,185 INFO L226 Difference]: Without dead ends: 982 [2024-11-24 01:56:26,188 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 01:56:26,189 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 39 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 674 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 01:56:26,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 674 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:56:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-11-24 01:56:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 970. [2024-11-24 01:56:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 717 states have (on average 1.3291492329149233) internal successors, (953), 723 states have internal predecessors, (953), 230 states have call successors, (230), 22 states have call predecessors, (230), 22 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-24 01:56:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1413 transitions. [2024-11-24 01:56:26,295 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1413 transitions. Word has length 265 [2024-11-24 01:56:26,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:26,297 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1413 transitions. [2024-11-24 01:56:26,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:56:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1413 transitions. [2024-11-24 01:56:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:56:26,302 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:26,303 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:26,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:56:26,303 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:26,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1426315248, now seen corresponding path program 1 times [2024-11-24 01:56:26,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:56:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061102119] [2024-11-24 01:56:26,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:56:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:56:58,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:56:58,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061102119] [2024-11-24 01:56:58,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061102119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:58,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:58,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:56:58,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851210632] [2024-11-24 01:56:58,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:58,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:56:58,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:58,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:56:58,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:56:58,135 INFO L87 Difference]: Start difference. First operand 970 states and 1413 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:57:03,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:57:03,095 INFO L93 Difference]: Finished difference Result 1934 states and 2770 transitions. [2024-11-24 01:57:03,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:57:03,096 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 265 [2024-11-24 01:57:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:57:03,104 INFO L225 Difference]: With dead ends: 1934 [2024-11-24 01:57:03,104 INFO L226 Difference]: Without dead ends: 1294 [2024-11-24 01:57:03,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:57:03,107 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 632 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1551 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:57:03,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1826 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1551 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-24 01:57:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2024-11-24 01:57:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 982. [2024-11-24 01:57:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 729 states have (on average 1.3305898491083676) internal successors, (970), 735 states have internal predecessors, (970), 230 states have call successors, (230), 22 states have call predecessors, (230), 22 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-24 01:57:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1430 transitions. [2024-11-24 01:57:03,212 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1430 transitions. Word has length 265 [2024-11-24 01:57:03,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:57:03,213 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1430 transitions. [2024-11-24 01:57:03,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:57:03,213 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1430 transitions. [2024-11-24 01:57:03,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:57:03,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:57:03,216 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:57:03,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:57:03,216 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:57:03,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:57:03,217 INFO L85 PathProgramCache]: Analyzing trace with hash -194164976, now seen corresponding path program 1 times [2024-11-24 01:57:03,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:57:03,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404061054] [2024-11-24 01:57:03,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:57:03,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:57:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:57:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:57:22,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:57:22,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404061054] [2024-11-24 01:57:22,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404061054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:57:22,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:57:22,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:57:22,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448504500] [2024-11-24 01:57:22,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:57:22,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:57:22,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:57:22,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:57:22,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:57:22,658 INFO L87 Difference]: Start difference. First operand 982 states and 1430 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:57:24,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:57:24,421 INFO L93 Difference]: Finished difference Result 1907 states and 2745 transitions. [2024-11-24 01:57:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:57:24,422 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 265 [2024-11-24 01:57:24,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:57:24,431 INFO L225 Difference]: With dead ends: 1907 [2024-11-24 01:57:24,431 INFO L226 Difference]: Without dead ends: 1255 [2024-11-24 01:57:24,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:57:24,436 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 340 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:57:24,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1301 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:57:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-24 01:57:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 968. [2024-11-24 01:57:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 715 states have (on average 1.3286713286713288) internal successors, (950), 721 states have internal predecessors, (950), 230 states have call successors, (230), 22 states have call predecessors, (230), 22 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-24 01:57:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1410 transitions. [2024-11-24 01:57:24,566 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1410 transitions. Word has length 265 [2024-11-24 01:57:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:57:24,567 INFO L471 AbstractCegarLoop]: Abstraction has 968 states and 1410 transitions. [2024-11-24 01:57:24,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:57:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1410 transitions. [2024-11-24 01:57:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:57:24,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:57:24,570 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:57:24,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:57:24,570 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:57:24,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:57:24,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1133884078, now seen corresponding path program 1 times [2024-11-24 01:57:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:57:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892170556] [2024-11-24 01:57:24,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:57:24,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:57:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:58:25,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:58:25,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892170556] [2024-11-24 01:58:25,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892170556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:58:25,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:58:25,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:58:25,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221770601] [2024-11-24 01:58:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:58:25,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:58:25,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:58:25,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:58:25,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:58:25,856 INFO L87 Difference]: Start difference. First operand 968 states and 1410 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:58:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:28,534 INFO L93 Difference]: Finished difference Result 1516 states and 2203 transitions. [2024-11-24 01:58:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:58:28,535 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 265 [2024-11-24 01:58:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:58:28,543 INFO L225 Difference]: With dead ends: 1516 [2024-11-24 01:58:28,543 INFO L226 Difference]: Without dead ends: 1074 [2024-11-24 01:58:28,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:58:28,547 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 541 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:58:28,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1116 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 01:58:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2024-11-24 01:58:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 959. [2024-11-24 01:58:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 706 states have (on average 1.3229461756373937) internal successors, (934), 712 states have internal predecessors, (934), 230 states have call successors, (230), 22 states have call predecessors, (230), 22 states have return successors, (230), 224 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-24 01:58:28,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1394 transitions. [2024-11-24 01:58:28,677 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1394 transitions. Word has length 265 [2024-11-24 01:58:28,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:58:28,678 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1394 transitions. [2024-11-24 01:58:28,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:58:28,679 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1394 transitions. [2024-11-24 01:58:28,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:58:28,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:58:28,681 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:28,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:58:28,682 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:58:28,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash 641123284, now seen corresponding path program 1 times [2024-11-24 01:58:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:58:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351201210] [2024-11-24 01:58:28,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:58:32,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:58:32,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351201210] [2024-11-24 01:58:32,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351201210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:58:32,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:58:32,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:58:32,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602046637] [2024-11-24 01:58:32,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:58:32,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:58:32,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:58:32,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:58:32,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:58:32,084 INFO L87 Difference]: Start difference. First operand 959 states and 1394 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:58:38,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:38,863 INFO L93 Difference]: Finished difference Result 1576 states and 2285 transitions. [2024-11-24 01:58:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:58:38,864 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 265 [2024-11-24 01:58:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:58:38,874 INFO L225 Difference]: With dead ends: 1576 [2024-11-24 01:58:38,874 INFO L226 Difference]: Without dead ends: 1349 [2024-11-24 01:58:38,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=221, Invalid=481, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:58:38,879 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 873 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:58:38,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1451 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 01:58:38,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2024-11-24 01:58:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1153. [2024-11-24 01:58:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 849 states have (on average 1.3333333333333333) internal successors, (1132), 856 states have internal predecessors, (1132), 276 states have call successors, (276), 27 states have call predecessors, (276), 27 states have return successors, (276), 269 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-24 01:58:39,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1684 transitions. [2024-11-24 01:58:39,042 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1684 transitions. Word has length 265 [2024-11-24 01:58:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:58:39,043 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1684 transitions. [2024-11-24 01:58:39,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 01:58:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1684 transitions. [2024-11-24 01:58:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:58:39,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:58:39,046 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:39,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:58:39,046 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:58:39,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1480246546, now seen corresponding path program 1 times [2024-11-24 01:58:39,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:58:39,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94219187] [2024-11-24 01:58:39,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:39,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:59:03,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:03,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94219187] [2024-11-24 01:59:03,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94219187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:03,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:03,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:59:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392735753] [2024-11-24 01:59:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:03,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:59:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:03,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:59:03,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:59:03,441 INFO L87 Difference]: Start difference. First operand 1153 states and 1684 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:04,981 INFO L93 Difference]: Finished difference Result 2015 states and 2888 transitions. [2024-11-24 01:59:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:59:04,981 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 265 [2024-11-24 01:59:04,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:04,991 INFO L225 Difference]: With dead ends: 2015 [2024-11-24 01:59:04,992 INFO L226 Difference]: Without dead ends: 1614 [2024-11-24 01:59:04,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:59:04,995 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 425 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:04,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1093 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:59:04,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-24 01:59:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1178. [2024-11-24 01:59:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 873 states have (on average 1.3379152348224512) internal successors, (1168), 880 states have internal predecessors, (1168), 276 states have call successors, (276), 28 states have call predecessors, (276), 28 states have return successors, (276), 269 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-24 01:59:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1720 transitions. [2024-11-24 01:59:05,159 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1720 transitions. Word has length 265 [2024-11-24 01:59:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:05,161 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1720 transitions. [2024-11-24 01:59:05,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1720 transitions. [2024-11-24 01:59:05,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-24 01:59:05,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:05,164 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:05,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:59:05,164 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:05,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:05,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1179708306, now seen corresponding path program 1 times [2024-11-24 01:59:05,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:05,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828380349] [2024-11-24 01:59:05,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:05,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:24,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:59:24,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:24,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828380349] [2024-11-24 01:59:24,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828380349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:24,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:24,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:59:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601325225] [2024-11-24 01:59:24,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:24,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:59:24,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:24,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:59:24,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:59:24,782 INFO L87 Difference]: Start difference. First operand 1178 states and 1720 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:26,660 INFO L93 Difference]: Finished difference Result 2242 states and 3248 transitions. [2024-11-24 01:59:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:59:26,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 265 [2024-11-24 01:59:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:26,670 INFO L225 Difference]: With dead ends: 2242 [2024-11-24 01:59:26,670 INFO L226 Difference]: Without dead ends: 1402 [2024-11-24 01:59:26,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:59:26,674 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 308 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:26,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1414 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:59:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2024-11-24 01:59:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1176. [2024-11-24 01:59:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 871 states have (on average 1.3375430539609645) internal successors, (1165), 878 states have internal predecessors, (1165), 276 states have call successors, (276), 28 states have call predecessors, (276), 28 states have return successors, (276), 269 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-24 01:59:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1717 transitions. [2024-11-24 01:59:26,848 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1717 transitions. Word has length 265 [2024-11-24 01:59:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:26,849 INFO L471 AbstractCegarLoop]: Abstraction has 1176 states and 1717 transitions. [2024-11-24 01:59:26,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1717 transitions. [2024-11-24 01:59:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-24 01:59:26,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:26,852 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:26,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:59:26,852 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:26,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash -509025537, now seen corresponding path program 1 times [2024-11-24 01:59:26,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:26,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436282129] [2024-11-24 01:59:26,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:26,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:59:48,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:48,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436282129] [2024-11-24 01:59:48,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436282129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:48,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:48,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:59:48,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792074769] [2024-11-24 01:59:48,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:48,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:59:48,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:48,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:59:48,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:59:48,862 INFO L87 Difference]: Start difference. First operand 1176 states and 1717 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:59:52,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:52,141 INFO L93 Difference]: Finished difference Result 1964 states and 2823 transitions. [2024-11-24 01:59:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:59:52,142 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 266 [2024-11-24 01:59:52,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:52,148 INFO L225 Difference]: With dead ends: 1964 [2024-11-24 01:59:52,148 INFO L226 Difference]: Without dead ends: 1563 [2024-11-24 01:59:52,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:59:52,150 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 727 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:52,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1079 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:59:52,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-24 01:59:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1183. [2024-11-24 01:59:52,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 878 states have (on average 1.3394077448747153) internal successors, (1176), 885 states have internal predecessors, (1176), 276 states have call successors, (276), 28 states have call predecessors, (276), 28 states have return successors, (276), 269 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-24 01:59:52,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1728 transitions. [2024-11-24 01:59:52,320 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1728 transitions. Word has length 266 [2024-11-24 01:59:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:52,324 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1728 transitions. [2024-11-24 01:59:52,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:59:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1728 transitions. [2024-11-24 01:59:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 01:59:52,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:52,332 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:52,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:59:52,332 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:52,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:52,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1490990813, now seen corresponding path program 1 times [2024-11-24 01:59:52,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:52,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26469677] [2024-11-24 01:59:52,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:52,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:54,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:59:54,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26469677] [2024-11-24 01:59:54,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26469677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:54,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:59:54,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500407907] [2024-11-24 01:59:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:54,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:59:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:54,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:59:54,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:59:54,425 INFO L87 Difference]: Start difference. First operand 1183 states and 1728 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:56,391 INFO L93 Difference]: Finished difference Result 2246 states and 3288 transitions. [2024-11-24 01:59:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:59:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 01:59:56,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:56,403 INFO L225 Difference]: With dead ends: 2246 [2024-11-24 01:59:56,403 INFO L226 Difference]: Without dead ends: 1840 [2024-11-24 01:59:56,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:59:56,406 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 323 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:56,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 1681 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:59:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2024-11-24 01:59:56,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1772. [2024-11-24 01:59:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1336 states have (on average 1.3375748502994012) internal successors, (1787), 1351 states have internal predecessors, (1787), 396 states have call successors, (396), 39 states have call predecessors, (396), 39 states have return successors, (396), 381 states have call predecessors, (396), 396 states have call successors, (396) [2024-11-24 01:59:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2579 transitions. [2024-11-24 01:59:56,618 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2579 transitions. Word has length 267 [2024-11-24 01:59:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:56,618 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2579 transitions. [2024-11-24 01:59:56,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 01:59:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2579 transitions. [2024-11-24 01:59:56,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 01:59:56,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:56,621 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:59:56,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:59:56,622 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:56,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:56,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1489414179, now seen corresponding path program 1 times [2024-11-24 01:59:56,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:59:56,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524765948] [2024-11-24 01:59:56,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:56,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:59:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:59,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 01:59:59,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:59:59,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524765948] [2024-11-24 01:59:59,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524765948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:59:59,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:59:59,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 01:59:59,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75870026] [2024-11-24 01:59:59,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:59:59,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:59:59,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:59:59,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:59:59,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:59:59,104 INFO L87 Difference]: Start difference. First operand 1772 states and 2579 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:00,290 INFO L93 Difference]: Finished difference Result 2509 states and 3547 transitions. [2024-11-24 02:00:00,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:00:00,291 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:00,300 INFO L225 Difference]: With dead ends: 2509 [2024-11-24 02:00:00,300 INFO L226 Difference]: Without dead ends: 2507 [2024-11-24 02:00:00,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:00:00,302 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 126 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:00,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 1766 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 02:00:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2507 states. [2024-11-24 02:00:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2507 to 2067. [2024-11-24 02:00:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 1570 states have (on average 1.3363057324840764) internal successors, (2098), 1591 states have internal predecessors, (2098), 448 states have call successors, (448), 48 states have call predecessors, (448), 48 states have return successors, (448), 427 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-24 02:00:00,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2994 transitions. [2024-11-24 02:00:00,589 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2994 transitions. Word has length 267 [2024-11-24 02:00:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:00,590 INFO L471 AbstractCegarLoop]: Abstraction has 2067 states and 2994 transitions. [2024-11-24 02:00:00,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2994 transitions. [2024-11-24 02:00:00,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:00,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:00,593 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:00,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 02:00:00,593 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:00,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1747579617, now seen corresponding path program 1 times [2024-11-24 02:00:00,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:00,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316815510] [2024-11-24 02:00:00,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:00,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:07,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:07,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316815510] [2024-11-24 02:00:07,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316815510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:07,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:07,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-24 02:00:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707926514] [2024-11-24 02:00:07,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:07,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 02:00:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:07,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 02:00:07,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-24 02:00:07,292 INFO L87 Difference]: Start difference. First operand 2067 states and 2994 transitions. Second operand has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:12,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:12,725 INFO L93 Difference]: Finished difference Result 3139 states and 4479 transitions. [2024-11-24 02:00:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 02:00:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:12,736 INFO L225 Difference]: With dead ends: 3139 [2024-11-24 02:00:12,736 INFO L226 Difference]: Without dead ends: 2452 [2024-11-24 02:00:12,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=270, Invalid=1136, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 02:00:12,739 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 544 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:12,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1992 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 02:00:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2024-11-24 02:00:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2157. [2024-11-24 02:00:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 1660 states have (on average 1.3385542168674698) internal successors, (2222), 1681 states have internal predecessors, (2222), 448 states have call successors, (448), 48 states have call predecessors, (448), 48 states have return successors, (448), 427 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-24 02:00:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3118 transitions. [2024-11-24 02:00:13,005 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3118 transitions. Word has length 267 [2024-11-24 02:00:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:13,006 INFO L471 AbstractCegarLoop]: Abstraction has 2157 states and 3118 transitions. [2024-11-24 02:00:13,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:13,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3118 transitions. [2024-11-24 02:00:13,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:13,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:13,009 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:13,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 02:00:13,009 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:13,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:13,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1524112805, now seen corresponding path program 1 times [2024-11-24 02:00:13,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:13,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789350939] [2024-11-24 02:00:13,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:13,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:15,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:15,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789350939] [2024-11-24 02:00:15,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789350939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:15,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:15,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 02:00:15,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937492507] [2024-11-24 02:00:15,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:15,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 02:00:15,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:15,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 02:00:15,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-24 02:00:15,321 INFO L87 Difference]: Start difference. First operand 2157 states and 3118 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:17,274 INFO L93 Difference]: Finished difference Result 2466 states and 3505 transitions. [2024-11-24 02:00:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:00:17,276 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:17,289 INFO L225 Difference]: With dead ends: 2466 [2024-11-24 02:00:17,290 INFO L226 Difference]: Without dead ends: 2464 [2024-11-24 02:00:17,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:00:17,293 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 208 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:17,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 1512 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:00:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2024-11-24 02:00:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2244. [2024-11-24 02:00:17,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1730 states have (on average 1.3277456647398844) internal successors, (2297), 1751 states have internal predecessors, (2297), 460 states have call successors, (460), 53 states have call predecessors, (460), 53 states have return successors, (460), 439 states have call predecessors, (460), 460 states have call successors, (460) [2024-11-24 02:00:17,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3217 transitions. [2024-11-24 02:00:17,521 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3217 transitions. Word has length 267 [2024-11-24 02:00:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:17,522 INFO L471 AbstractCegarLoop]: Abstraction has 2244 states and 3217 transitions. [2024-11-24 02:00:17,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:17,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3217 transitions. [2024-11-24 02:00:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:17,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:17,525 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:17,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 02:00:17,525 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:17,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:17,526 INFO L85 PathProgramCache]: Analyzing trace with hash 209550501, now seen corresponding path program 1 times [2024-11-24 02:00:17,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:17,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833623342] [2024-11-24 02:00:17,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:17,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:21,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:21,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833623342] [2024-11-24 02:00:21,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833623342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:21,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:21,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-24 02:00:21,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991052004] [2024-11-24 02:00:21,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:21,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:00:21,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:21,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:00:21,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:00:21,173 INFO L87 Difference]: Start difference. First operand 2244 states and 3217 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:22,555 INFO L93 Difference]: Finished difference Result 2710 states and 3797 transitions. [2024-11-24 02:00:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 02:00:22,556 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:22,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:22,570 INFO L225 Difference]: With dead ends: 2710 [2024-11-24 02:00:22,570 INFO L226 Difference]: Without dead ends: 2708 [2024-11-24 02:00:22,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:00:22,572 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 90 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:22,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 2048 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:00:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2024-11-24 02:00:22,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2381. [2024-11-24 02:00:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1864 states have (on average 1.3245708154506437) internal successors, (2469), 1886 states have internal predecessors, (2469), 462 states have call successors, (462), 54 states have call predecessors, (462), 54 states have return successors, (462), 440 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-24 02:00:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3393 transitions. [2024-11-24 02:00:22,857 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3393 transitions. Word has length 267 [2024-11-24 02:00:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:22,858 INFO L471 AbstractCegarLoop]: Abstraction has 2381 states and 3393 transitions. [2024-11-24 02:00:22,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:22,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3393 transitions. [2024-11-24 02:00:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:22,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:22,862 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:22,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 02:00:22,862 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:22,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:22,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1373198179, now seen corresponding path program 1 times [2024-11-24 02:00:22,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:22,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85347129] [2024-11-24 02:00:22,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:27,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:27,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85347129] [2024-11-24 02:00:27,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85347129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:27,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:27,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:00:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978729349] [2024-11-24 02:00:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:27,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:00:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:27,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:00:27,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:00:27,112 INFO L87 Difference]: Start difference. First operand 2381 states and 3393 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:00:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:29,605 INFO L93 Difference]: Finished difference Result 3766 states and 5363 transitions. [2024-11-24 02:00:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:00:29,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 267 [2024-11-24 02:00:29,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:29,615 INFO L225 Difference]: With dead ends: 3766 [2024-11-24 02:00:29,615 INFO L226 Difference]: Without dead ends: 2481 [2024-11-24 02:00:29,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:00:29,620 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 364 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:29,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1145 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 02:00:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2024-11-24 02:00:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2392. [2024-11-24 02:00:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1875 states have (on average 1.3114666666666666) internal successors, (2459), 1897 states have internal predecessors, (2459), 462 states have call successors, (462), 54 states have call predecessors, (462), 54 states have return successors, (462), 440 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-24 02:00:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3383 transitions. [2024-11-24 02:00:29,896 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3383 transitions. Word has length 267 [2024-11-24 02:00:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:29,897 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3383 transitions. [2024-11-24 02:00:29,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:00:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3383 transitions. [2024-11-24 02:00:29,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:29,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:29,901 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:29,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 02:00:29,901 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:29,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:29,902 INFO L85 PathProgramCache]: Analyzing trace with hash 58635875, now seen corresponding path program 1 times [2024-11-24 02:00:29,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:29,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953050791] [2024-11-24 02:00:29,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:29,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:34,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953050791] [2024-11-24 02:00:34,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953050791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:34,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:34,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:00:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057298088] [2024-11-24 02:00:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:34,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:00:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:34,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:00:34,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:00:34,558 INFO L87 Difference]: Start difference. First operand 2392 states and 3383 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:36,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:36,221 INFO L93 Difference]: Finished difference Result 2668 states and 3722 transitions. [2024-11-24 02:00:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:00:36,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:36,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:36,236 INFO L225 Difference]: With dead ends: 2668 [2024-11-24 02:00:36,236 INFO L226 Difference]: Without dead ends: 2666 [2024-11-24 02:00:36,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:00:36,240 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 165 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1761 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:36,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1761 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:00:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2024-11-24 02:00:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2329. [2024-11-24 02:00:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1812 states have (on average 1.304083885209713) internal successors, (2363), 1834 states have internal predecessors, (2363), 462 states have call successors, (462), 54 states have call predecessors, (462), 54 states have return successors, (462), 440 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-24 02:00:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3287 transitions. [2024-11-24 02:00:36,483 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3287 transitions. Word has length 267 [2024-11-24 02:00:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:36,483 INFO L471 AbstractCegarLoop]: Abstraction has 2329 states and 3287 transitions. [2024-11-24 02:00:36,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3287 transitions. [2024-11-24 02:00:36,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:36,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:36,486 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:36,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 02:00:36,486 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:36,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:36,487 INFO L85 PathProgramCache]: Analyzing trace with hash 93334501, now seen corresponding path program 1 times [2024-11-24 02:00:36,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:36,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447102395] [2024-11-24 02:00:36,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:42,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:42,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447102395] [2024-11-24 02:00:42,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447102395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:42,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:42,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-24 02:00:42,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043982095] [2024-11-24 02:00:42,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:42,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 02:00:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:42,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 02:00:42,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-24 02:00:42,502 INFO L87 Difference]: Start difference. First operand 2329 states and 3287 transitions. Second operand has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 02:00:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:50,017 INFO L93 Difference]: Finished difference Result 2557 states and 3574 transitions. [2024-11-24 02:00:50,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 02:00:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 267 [2024-11-24 02:00:50,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:50,030 INFO L225 Difference]: With dead ends: 2557 [2024-11-24 02:00:50,030 INFO L226 Difference]: Without dead ends: 2555 [2024-11-24 02:00:50,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=359, Invalid=1281, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 02:00:50,032 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 601 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:50,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1865 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-24 02:00:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2024-11-24 02:00:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2330. [2024-11-24 02:00:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 1813 states have (on average 1.3039161610590182) internal successors, (2364), 1835 states have internal predecessors, (2364), 462 states have call successors, (462), 54 states have call predecessors, (462), 54 states have return successors, (462), 440 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-24 02:00:50,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3288 transitions. [2024-11-24 02:00:50,346 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3288 transitions. Word has length 267 [2024-11-24 02:00:50,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:50,347 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 3288 transitions. [2024-11-24 02:00:50,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 3 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-24 02:00:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3288 transitions. [2024-11-24 02:00:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-24 02:00:50,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:50,350 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:50,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 02:00:50,352 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:50,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:50,353 INFO L85 PathProgramCache]: Analyzing trace with hash 516036327, now seen corresponding path program 1 times [2024-11-24 02:00:50,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:50,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137214788] [2024-11-24 02:00:50,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:50,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:53,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:53,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137214788] [2024-11-24 02:00:53,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137214788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:53,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:53,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:00:53,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529048539] [2024-11-24 02:00:53,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:53,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:00:53,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:53,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:00:53,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:00:53,328 INFO L87 Difference]: Start difference. First operand 2330 states and 3288 transitions. Second operand has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:55,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:55,303 INFO L93 Difference]: Finished difference Result 2386 states and 3349 transitions. [2024-11-24 02:00:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:00:55,304 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2024-11-24 02:00:55,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:55,315 INFO L225 Difference]: With dead ends: 2386 [2024-11-24 02:00:55,315 INFO L226 Difference]: Without dead ends: 2384 [2024-11-24 02:00:55,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:00:55,317 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 262 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1883 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:55,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1883 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:00:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-11-24 02:00:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2324. [2024-11-24 02:00:55,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 1807 states have (on average 1.3032650802434975) internal successors, (2355), 1829 states have internal predecessors, (2355), 462 states have call successors, (462), 54 states have call predecessors, (462), 54 states have return successors, (462), 440 states have call predecessors, (462), 462 states have call successors, (462) [2024-11-24 02:00:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3279 transitions. [2024-11-24 02:00:55,640 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3279 transitions. Word has length 267 [2024-11-24 02:00:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:55,641 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3279 transitions. [2024-11-24 02:00:55,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.0) internal successors, (60), 15 states have internal predecessors, (60), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3279 transitions. [2024-11-24 02:00:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-24 02:00:55,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:55,644 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:55,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 02:00:55,644 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:55,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1227459428, now seen corresponding path program 1 times [2024-11-24 02:00:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:55,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371339533] [2024-11-24 02:00:55,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:55,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:55,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:55,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371339533] [2024-11-24 02:00:55,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371339533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:55,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:55,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:55,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886206446] [2024-11-24 02:00:55,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:55,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:55,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:55,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:55,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:55,842 INFO L87 Difference]: Start difference. First operand 2324 states and 3279 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:56,351 INFO L93 Difference]: Finished difference Result 4738 states and 6644 transitions. [2024-11-24 02:00:56,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 269 [2024-11-24 02:00:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:56,365 INFO L225 Difference]: With dead ends: 4738 [2024-11-24 02:00:56,365 INFO L226 Difference]: Without dead ends: 2679 [2024-11-24 02:00:56,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:56,372 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 65 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:56,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 817 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:00:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2024-11-24 02:00:56,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2529. [2024-11-24 02:00:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 1922 states have (on average 1.2819979188345474) internal successors, (2464), 1947 states have internal predecessors, (2464), 532 states have call successors, (532), 74 states have call predecessors, (532), 74 states have return successors, (532), 507 states have call predecessors, (532), 532 states have call successors, (532) [2024-11-24 02:00:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 3528 transitions. [2024-11-24 02:00:56,757 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 3528 transitions. Word has length 269 [2024-11-24 02:00:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:56,758 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 3528 transitions. [2024-11-24 02:00:56,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 3528 transitions. [2024-11-24 02:00:56,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-24 02:00:56,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:56,761 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:56,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 02:00:56,761 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:56,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1879472022, now seen corresponding path program 1 times [2024-11-24 02:00:56,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:56,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349032157] [2024-11-24 02:00:56,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:56,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:56,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349032157] [2024-11-24 02:00:56,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349032157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:56,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:56,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:56,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689873049] [2024-11-24 02:00:56,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:56,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:56,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:56,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:56,955 INFO L87 Difference]: Start difference. First operand 2529 states and 3528 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:57,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:57,693 INFO L93 Difference]: Finished difference Result 5691 states and 7889 transitions. [2024-11-24 02:00:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 269 [2024-11-24 02:00:57,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:57,713 INFO L225 Difference]: With dead ends: 5691 [2024-11-24 02:00:57,713 INFO L226 Difference]: Without dead ends: 3399 [2024-11-24 02:00:57,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:57,726 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 67 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:57,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 766 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 02:00:57,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2024-11-24 02:00:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3222. [2024-11-24 02:00:58,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 2511 states have (on average 1.2819593787335724) internal successors, (3219), 2548 states have internal predecessors, (3219), 616 states have call successors, (616), 94 states have call predecessors, (616), 94 states have return successors, (616), 579 states have call predecessors, (616), 616 states have call successors, (616) [2024-11-24 02:00:58,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4451 transitions. [2024-11-24 02:00:58,204 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4451 transitions. Word has length 269 [2024-11-24 02:00:58,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:58,209 INFO L471 AbstractCegarLoop]: Abstraction has 3222 states and 4451 transitions. [2024-11-24 02:00:58,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4451 transitions. [2024-11-24 02:00:58,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-24 02:00:58,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:58,212 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:58,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 02:00:58,212 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:58,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1778241831, now seen corresponding path program 1 times [2024-11-24 02:00:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:58,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623740028] [2024-11-24 02:00:58,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:00:58,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:58,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623740028] [2024-11-24 02:00:58,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623740028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:58,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:58,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339145131] [2024-11-24 02:00:58,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:58,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:58,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:58,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:58,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:58,356 INFO L87 Difference]: Start difference. First operand 3222 states and 4451 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:58,999 INFO L93 Difference]: Finished difference Result 7516 states and 10210 transitions. [2024-11-24 02:00:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 270 [2024-11-24 02:00:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:59,019 INFO L225 Difference]: With dead ends: 7516 [2024-11-24 02:00:59,019 INFO L226 Difference]: Without dead ends: 4533 [2024-11-24 02:00:59,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:59,028 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 55 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:59,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 412 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:00:59,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2024-11-24 02:00:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4408. [2024-11-24 02:00:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 3500 states have (on average 1.2394285714285713) internal successors, (4338), 3563 states have internal predecessors, (4338), 750 states have call successors, (750), 157 states have call predecessors, (750), 157 states have return successors, (750), 687 states have call predecessors, (750), 750 states have call successors, (750) [2024-11-24 02:00:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5838 transitions. [2024-11-24 02:00:59,732 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5838 transitions. Word has length 270 [2024-11-24 02:00:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:59,733 INFO L471 AbstractCegarLoop]: Abstraction has 4408 states and 5838 transitions. [2024-11-24 02:00:59,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:00:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5838 transitions. [2024-11-24 02:00:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:00:59,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:59,737 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:59,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 02:00:59,738 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:59,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:59,738 INFO L85 PathProgramCache]: Analyzing trace with hash -895746525, now seen corresponding path program 1 times [2024-11-24 02:00:59,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:59,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650390923] [2024-11-24 02:00:59,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:59,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:04,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650390923] [2024-11-24 02:01:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650390923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:04,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:01:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184917100] [2024-11-24 02:01:04,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:04,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:01:04,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:04,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:01:04,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:01:04,585 INFO L87 Difference]: Start difference. First operand 4408 states and 5838 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:07,617 INFO L93 Difference]: Finished difference Result 4679 states and 6173 transitions. [2024-11-24 02:01:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 02:01:07,618 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:07,636 INFO L225 Difference]: With dead ends: 4679 [2024-11-24 02:01:07,636 INFO L226 Difference]: Without dead ends: 4677 [2024-11-24 02:01:07,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:01:07,640 INFO L435 NwaCegarLoop]: 260 mSDtfsCounter, 215 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:07,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 2263 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 02:01:07,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4677 states. [2024-11-24 02:01:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4677 to 4585. [2024-11-24 02:01:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4585 states, 3632 states have (on average 1.236784140969163) internal successors, (4492), 3699 states have internal predecessors, (4492), 786 states have call successors, (786), 166 states have call predecessors, (786), 166 states have return successors, (786), 719 states have call predecessors, (786), 786 states have call successors, (786) [2024-11-24 02:01:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4585 states to 4585 states and 6064 transitions. [2024-11-24 02:01:08,327 INFO L78 Accepts]: Start accepts. Automaton has 4585 states and 6064 transitions. Word has length 271 [2024-11-24 02:01:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:08,328 INFO L471 AbstractCegarLoop]: Abstraction has 4585 states and 6064 transitions. [2024-11-24 02:01:08,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:08,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4585 states and 6064 transitions. [2024-11-24 02:01:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:08,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:08,332 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:08,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-24 02:01:08,332 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:08,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:08,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1469735645, now seen corresponding path program 1 times [2024-11-24 02:01:08,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:08,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791049868] [2024-11-24 02:01:08,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:11,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:11,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791049868] [2024-11-24 02:01:11,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791049868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:11,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:01:11,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485336878] [2024-11-24 02:01:11,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:11,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:01:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:11,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:01:11,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:01:11,166 INFO L87 Difference]: Start difference. First operand 4585 states and 6064 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:13,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:13,303 INFO L93 Difference]: Finished difference Result 5303 states and 6933 transitions. [2024-11-24 02:01:13,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:01:13,304 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:13,328 INFO L225 Difference]: With dead ends: 5303 [2024-11-24 02:01:13,328 INFO L226 Difference]: Without dead ends: 5301 [2024-11-24 02:01:13,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:01:13,333 INFO L435 NwaCegarLoop]: 270 mSDtfsCounter, 146 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:13,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 2388 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 02:01:13,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2024-11-24 02:01:14,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 4410. [2024-11-24 02:01:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4410 states, 3551 states have (on average 1.2441565756125035) internal successors, (4418), 3609 states have internal predecessors, (4418), 710 states have call successors, (710), 148 states have call predecessors, (710), 148 states have return successors, (710), 652 states have call predecessors, (710), 710 states have call successors, (710) [2024-11-24 02:01:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 5838 transitions. [2024-11-24 02:01:14,133 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 5838 transitions. Word has length 271 [2024-11-24 02:01:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:14,134 INFO L471 AbstractCegarLoop]: Abstraction has 4410 states and 5838 transitions. [2024-11-24 02:01:14,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 5838 transitions. [2024-11-24 02:01:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:14,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:14,139 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:14,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-24 02:01:14,139 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:14,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:14,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1814114401, now seen corresponding path program 1 times [2024-11-24 02:01:14,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:14,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439183189] [2024-11-24 02:01:14,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:14,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:20,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:20,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439183189] [2024-11-24 02:01:20,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439183189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:20,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:20,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-24 02:01:20,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011616299] [2024-11-24 02:01:20,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:20,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 02:01:20,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:20,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 02:01:20,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2024-11-24 02:01:20,502 INFO L87 Difference]: Start difference. First operand 4410 states and 5838 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:31,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:31,728 INFO L93 Difference]: Finished difference Result 5755 states and 7406 transitions. [2024-11-24 02:01:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-24 02:01:31,729 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:31,744 INFO L225 Difference]: With dead ends: 5755 [2024-11-24 02:01:31,744 INFO L226 Difference]: Without dead ends: 5753 [2024-11-24 02:01:31,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=383, Invalid=1779, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 02:01:31,748 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 610 mSDsluCounter, 2359 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:31,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 2558 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 02:01:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2024-11-24 02:01:32,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 4402. [2024-11-24 02:01:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4402 states, 3543 states have (on average 1.244425627998871) internal successors, (4409), 3601 states have internal predecessors, (4409), 710 states have call successors, (710), 148 states have call predecessors, (710), 148 states have return successors, (710), 652 states have call predecessors, (710), 710 states have call successors, (710) [2024-11-24 02:01:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4402 states to 4402 states and 5829 transitions. [2024-11-24 02:01:32,364 INFO L78 Accepts]: Start accepts. Automaton has 4402 states and 5829 transitions. Word has length 271 [2024-11-24 02:01:32,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:32,364 INFO L471 AbstractCegarLoop]: Abstraction has 4402 states and 5829 transitions. [2024-11-24 02:01:32,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4402 states and 5829 transitions. [2024-11-24 02:01:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:32,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:32,368 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:32,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-24 02:01:32,369 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:32,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:32,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1810872869, now seen corresponding path program 1 times [2024-11-24 02:01:32,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:32,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182432848] [2024-11-24 02:01:32,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:32,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182432848] [2024-11-24 02:01:35,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182432848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:35,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:35,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:01:35,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540701282] [2024-11-24 02:01:35,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:35,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:01:35,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:35,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:01:35,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:01:35,414 INFO L87 Difference]: Start difference. First operand 4402 states and 5829 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:37,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:37,823 INFO L93 Difference]: Finished difference Result 4749 states and 6245 transitions. [2024-11-24 02:01:37,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:01:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:37,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:37,834 INFO L225 Difference]: With dead ends: 4749 [2024-11-24 02:01:37,835 INFO L226 Difference]: Without dead ends: 4747 [2024-11-24 02:01:37,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-11-24 02:01:37,837 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 199 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:37,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 2199 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:01:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4747 states. [2024-11-24 02:01:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4747 to 4717. [2024-11-24 02:01:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4717 states, 3769 states have (on average 1.2345449721411514) internal successors, (4653), 3833 states have internal predecessors, (4653), 778 states have call successors, (778), 169 states have call predecessors, (778), 169 states have return successors, (778), 714 states have call predecessors, (778), 778 states have call successors, (778) [2024-11-24 02:01:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4717 states to 4717 states and 6209 transitions. [2024-11-24 02:01:38,474 INFO L78 Accepts]: Start accepts. Automaton has 4717 states and 6209 transitions. Word has length 271 [2024-11-24 02:01:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:38,474 INFO L471 AbstractCegarLoop]: Abstraction has 4717 states and 6209 transitions. [2024-11-24 02:01:38,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 4717 states and 6209 transitions. [2024-11-24 02:01:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:38,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:38,478 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:38,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-24 02:01:38,478 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:38,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1236883749, now seen corresponding path program 1 times [2024-11-24 02:01:38,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:38,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105503930] [2024-11-24 02:01:38,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:38,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:43,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:43,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105503930] [2024-11-24 02:01:43,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105503930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:43,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:43,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:01:43,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711296750] [2024-11-24 02:01:43,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:43,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:01:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:43,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:01:43,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:01:43,808 INFO L87 Difference]: Start difference. First operand 4717 states and 6209 transitions. Second operand has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:47,443 INFO L93 Difference]: Finished difference Result 6522 states and 8354 transitions. [2024-11-24 02:01:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 02:01:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:47,457 INFO L225 Difference]: With dead ends: 6522 [2024-11-24 02:01:47,457 INFO L226 Difference]: Without dead ends: 6520 [2024-11-24 02:01:47,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:01:47,460 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 166 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:47,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 2633 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-24 02:01:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6520 states. [2024-11-24 02:01:48,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6520 to 4777. [2024-11-24 02:01:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4777 states, 3826 states have (on average 1.233925771040251) internal successors, (4721), 3891 states have internal predecessors, (4721), 780 states have call successors, (780), 170 states have call predecessors, (780), 170 states have return successors, (780), 715 states have call predecessors, (780), 780 states have call successors, (780) [2024-11-24 02:01:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 6281 transitions. [2024-11-24 02:01:48,085 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 6281 transitions. Word has length 271 [2024-11-24 02:01:48,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:48,086 INFO L471 AbstractCegarLoop]: Abstraction has 4777 states and 6281 transitions. [2024-11-24 02:01:48,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:48,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 6281 transitions. [2024-11-24 02:01:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:48,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:48,088 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:48,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-24 02:01:48,088 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:48,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:48,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1342560066, now seen corresponding path program 1 times [2024-11-24 02:01:48,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:48,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147652865] [2024-11-24 02:01:48,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:48,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:48,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147652865] [2024-11-24 02:01:48,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147652865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:48,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:48,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:01:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562419289] [2024-11-24 02:01:48,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:48,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:01:48,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:48,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:01:48,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:48,230 INFO L87 Difference]: Start difference. First operand 4777 states and 6281 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:48,681 INFO L93 Difference]: Finished difference Result 8699 states and 11444 transitions. [2024-11-24 02:01:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:01:48,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:01:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:48,694 INFO L225 Difference]: With dead ends: 8699 [2024-11-24 02:01:48,694 INFO L226 Difference]: Without dead ends: 4170 [2024-11-24 02:01:48,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:01:48,702 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 43 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:48,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 406 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:01:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2024-11-24 02:01:49,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3595. [2024-11-24 02:01:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 2862 states have (on average 1.2354996505939901) internal successors, (3536), 2896 states have internal predecessors, (3536), 610 states have call successors, (610), 122 states have call predecessors, (610), 122 states have return successors, (610), 576 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-24 02:01:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 4756 transitions. [2024-11-24 02:01:49,077 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 4756 transitions. Word has length 271 [2024-11-24 02:01:49,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:49,077 INFO L471 AbstractCegarLoop]: Abstraction has 3595 states and 4756 transitions. [2024-11-24 02:01:49,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:01:49,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 4756 transitions. [2024-11-24 02:01:49,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:01:49,081 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:49,081 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:49,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-24 02:01:49,081 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:49,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 582665187, now seen corresponding path program 1 times [2024-11-24 02:01:49,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:49,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257732853] [2024-11-24 02:01:49,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:49,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:01:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:54,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257732853] [2024-11-24 02:01:54,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257732853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:54,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:54,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-24 02:01:54,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803322261] [2024-11-24 02:01:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:54,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 02:01:54,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:54,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 02:01:54,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:01:54,972 INFO L87 Difference]: Start difference. First operand 3595 states and 4756 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:01:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:59,676 INFO L93 Difference]: Finished difference Result 3904 states and 5097 transitions. [2024-11-24 02:01:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 02:01:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 271 [2024-11-24 02:01:59,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:59,685 INFO L225 Difference]: With dead ends: 3904 [2024-11-24 02:01:59,685 INFO L226 Difference]: Without dead ends: 3902 [2024-11-24 02:01:59,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:01:59,687 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 567 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 2172 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:59,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 2172 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 02:01:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2024-11-24 02:02:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3609. [2024-11-24 02:02:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3609 states, 2876 states have (on average 1.2353963838664812) internal successors, (3553), 2910 states have internal predecessors, (3553), 610 states have call successors, (610), 122 states have call predecessors, (610), 122 states have return successors, (610), 576 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-24 02:02:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3609 states to 3609 states and 4773 transitions. [2024-11-24 02:02:00,024 INFO L78 Accepts]: Start accepts. Automaton has 3609 states and 4773 transitions. Word has length 271 [2024-11-24 02:02:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:00,025 INFO L471 AbstractCegarLoop]: Abstraction has 3609 states and 4773 transitions. [2024-11-24 02:02:00,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:02:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3609 states and 4773 transitions. [2024-11-24 02:02:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:00,027 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:00,027 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:00,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-24 02:02:00,027 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:00,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:00,028 INFO L85 PathProgramCache]: Analyzing trace with hash 8676067, now seen corresponding path program 1 times [2024-11-24 02:02:00,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:00,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663066253] [2024-11-24 02:02:00,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663066253] [2024-11-24 02:02:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663066253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:09,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:09,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-24 02:02:09,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119872682] [2024-11-24 02:02:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:09,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 02:02:09,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:09,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 02:02:09,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:02:09,214 INFO L87 Difference]: Start difference. First operand 3609 states and 4773 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:02:17,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:17,121 INFO L93 Difference]: Finished difference Result 3834 states and 5013 transitions. [2024-11-24 02:02:17,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:02:17,122 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 271 [2024-11-24 02:02:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:17,131 INFO L225 Difference]: With dead ends: 3834 [2024-11-24 02:02:17,131 INFO L226 Difference]: Without dead ends: 3832 [2024-11-24 02:02:17,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=225, Invalid=897, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 02:02:17,133 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 374 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 2611 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:17,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 2348 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2611 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-24 02:02:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3832 states. [2024-11-24 02:02:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3832 to 3603. [2024-11-24 02:02:17,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 2870 states have (on average 1.235191637630662) internal successors, (3545), 2904 states have internal predecessors, (3545), 610 states have call successors, (610), 122 states have call predecessors, (610), 122 states have return successors, (610), 576 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-24 02:02:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4765 transitions. [2024-11-24 02:02:17,482 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4765 transitions. Word has length 271 [2024-11-24 02:02:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:17,483 INFO L471 AbstractCegarLoop]: Abstraction has 3603 states and 4765 transitions. [2024-11-24 02:02:17,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:02:17,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4765 transitions. [2024-11-24 02:02:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:17,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:17,486 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:17,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-24 02:02:17,486 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:17,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:17,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1005682715, now seen corresponding path program 1 times [2024-11-24 02:02:17,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:17,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007110288] [2024-11-24 02:02:17,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:17,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:23,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007110288] [2024-11-24 02:02:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007110288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:23,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 02:02:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174948698] [2024-11-24 02:02:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:23,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 02:02:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:23,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 02:02:23,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:02:23,046 INFO L87 Difference]: Start difference. First operand 3603 states and 4765 transitions. Second operand has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:02:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:27,833 INFO L93 Difference]: Finished difference Result 3810 states and 4990 transitions. [2024-11-24 02:02:27,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:02:27,836 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 271 [2024-11-24 02:02:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:27,846 INFO L225 Difference]: With dead ends: 3810 [2024-11-24 02:02:27,846 INFO L226 Difference]: Without dead ends: 3808 [2024-11-24 02:02:27,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2024-11-24 02:02:27,848 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 332 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:27,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2183 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 02:02:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2024-11-24 02:02:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3604. [2024-11-24 02:02:28,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 2871 states have (on average 1.2351097178683386) internal successors, (3546), 2905 states have internal predecessors, (3546), 610 states have call successors, (610), 122 states have call predecessors, (610), 122 states have return successors, (610), 576 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-24 02:02:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4766 transitions. [2024-11-24 02:02:28,248 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4766 transitions. Word has length 271 [2024-11-24 02:02:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:28,248 INFO L471 AbstractCegarLoop]: Abstraction has 3604 states and 4766 transitions. [2024-11-24 02:02:28,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:02:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4766 transitions. [2024-11-24 02:02:28,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:28,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:28,250 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:28,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-24 02:02:28,251 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:28,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:28,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1954663011, now seen corresponding path program 1 times [2024-11-24 02:02:28,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:28,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057107999] [2024-11-24 02:02:28,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:28,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:32,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:32,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057107999] [2024-11-24 02:02:32,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057107999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:32,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:32,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 02:02:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581330140] [2024-11-24 02:02:32,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:32,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 02:02:32,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:32,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 02:02:32,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:02:32,245 INFO L87 Difference]: Start difference. First operand 3604 states and 4766 transitions. Second operand has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:37,128 INFO L93 Difference]: Finished difference Result 4124 states and 5353 transitions. [2024-11-24 02:02:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 02:02:37,129 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:02:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:37,139 INFO L225 Difference]: With dead ends: 4124 [2024-11-24 02:02:37,139 INFO L226 Difference]: Without dead ends: 4122 [2024-11-24 02:02:37,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-11-24 02:02:37,141 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 301 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1242 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:37,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 2627 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1242 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 02:02:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2024-11-24 02:02:37,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3571. [2024-11-24 02:02:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2838 states have (on average 1.233967582804792) internal successors, (3502), 2872 states have internal predecessors, (3502), 610 states have call successors, (610), 122 states have call predecessors, (610), 122 states have return successors, (610), 576 states have call predecessors, (610), 610 states have call successors, (610) [2024-11-24 02:02:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4722 transitions. [2024-11-24 02:02:37,516 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4722 transitions. Word has length 271 [2024-11-24 02:02:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:37,517 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 4722 transitions. [2024-11-24 02:02:37,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 17 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4722 transitions. [2024-11-24 02:02:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:37,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:37,519 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:37,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-24 02:02:37,519 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:37,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1377432359, now seen corresponding path program 1 times [2024-11-24 02:02:37,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:37,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866380895] [2024-11-24 02:02:37,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:40,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:40,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866380895] [2024-11-24 02:02:40,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866380895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:40,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:40,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:02:40,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846840244] [2024-11-24 02:02:40,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:40,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:02:40,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:40,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:02:40,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:02:40,233 INFO L87 Difference]: Start difference. First operand 3571 states and 4722 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:41,988 INFO L93 Difference]: Finished difference Result 4065 states and 5266 transitions. [2024-11-24 02:02:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:02:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:02:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:41,997 INFO L225 Difference]: With dead ends: 4065 [2024-11-24 02:02:41,997 INFO L226 Difference]: Without dead ends: 4063 [2024-11-24 02:02:41,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:02:41,999 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 96 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:41,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 2286 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 02:02:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2024-11-24 02:02:42,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 3529. [2024-11-24 02:02:42,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3529 states, 2804 states have (on average 1.2346647646219686) internal successors, (3462), 2835 states have internal predecessors, (3462), 602 states have call successors, (602), 122 states have call predecessors, (602), 122 states have return successors, (602), 571 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:02:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4666 transitions. [2024-11-24 02:02:42,356 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4666 transitions. Word has length 271 [2024-11-24 02:02:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:42,357 INFO L471 AbstractCegarLoop]: Abstraction has 3529 states and 4666 transitions. [2024-11-24 02:02:42,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:42,357 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4666 transitions. [2024-11-24 02:02:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:42,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:42,359 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:42,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-24 02:02:42,360 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:42,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash 366315109, now seen corresponding path program 1 times [2024-11-24 02:02:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:42,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445739364] [2024-11-24 02:02:42,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:42,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445739364] [2024-11-24 02:02:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445739364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:46,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:46,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 02:02:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932904327] [2024-11-24 02:02:46,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:46,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 02:02:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:46,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 02:02:46,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-24 02:02:46,552 INFO L87 Difference]: Start difference. First operand 3529 states and 4666 transitions. Second operand has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:49,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:49,740 INFO L93 Difference]: Finished difference Result 3847 states and 5031 transitions. [2024-11-24 02:02:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 02:02:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:02:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:49,750 INFO L225 Difference]: With dead ends: 3847 [2024-11-24 02:02:49,750 INFO L226 Difference]: Without dead ends: 3845 [2024-11-24 02:02:49,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2024-11-24 02:02:49,752 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 214 mSDsluCounter, 1815 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:49,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 2024 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 02:02:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2024-11-24 02:02:50,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3506. [2024-11-24 02:02:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 2781 states have (on average 1.2351672060409924) internal successors, (3435), 2812 states have internal predecessors, (3435), 602 states have call successors, (602), 122 states have call predecessors, (602), 122 states have return successors, (602), 571 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:02:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 4639 transitions. [2024-11-24 02:02:50,185 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 4639 transitions. Word has length 271 [2024-11-24 02:02:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:50,186 INFO L471 AbstractCegarLoop]: Abstraction has 3506 states and 4639 transitions. [2024-11-24 02:02:50,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5555555555555554) internal successors, (64), 18 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 4639 transitions. [2024-11-24 02:02:50,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:50,187 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:50,188 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:50,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-24 02:02:50,188 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:50,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:50,188 INFO L85 PathProgramCache]: Analyzing trace with hash 723213797, now seen corresponding path program 1 times [2024-11-24 02:02:50,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:50,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602156515] [2024-11-24 02:02:50,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:50,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602156515] [2024-11-24 02:02:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602156515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:52,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 02:02:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597155836] [2024-11-24 02:02:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 02:02:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:52,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 02:02:52,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-24 02:02:52,890 INFO L87 Difference]: Start difference. First operand 3506 states and 4639 transitions. Second operand has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:02:54,710 INFO L93 Difference]: Finished difference Result 3690 states and 4847 transitions. [2024-11-24 02:02:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:02:54,711 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:02:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:02:54,720 INFO L225 Difference]: With dead ends: 3690 [2024-11-24 02:02:54,720 INFO L226 Difference]: Without dead ends: 3688 [2024-11-24 02:02:54,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-11-24 02:02:54,722 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 148 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:02:54,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 2026 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 02:02:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-24 02:02:55,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3537. [2024-11-24 02:02:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2812 states have (on average 1.2357752489331437) internal successors, (3475), 2843 states have internal predecessors, (3475), 602 states have call successors, (602), 122 states have call predecessors, (602), 122 states have return successors, (602), 571 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-24 02:02:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 4679 transitions. [2024-11-24 02:02:55,162 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 4679 transitions. Word has length 271 [2024-11-24 02:02:55,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:02:55,162 INFO L471 AbstractCegarLoop]: Abstraction has 3537 states and 4679 transitions. [2024-11-24 02:02:55,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.266666666666667) internal successors, (64), 15 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:02:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 4679 transitions. [2024-11-24 02:02:55,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:02:55,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:02:55,165 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:02:55,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-24 02:02:55,166 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:02:55,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:02:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash 149224677, now seen corresponding path program 1 times [2024-11-24 02:02:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:02:55,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717832676] [2024-11-24 02:02:55,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:02:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:02:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:02:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:02:59,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:02:59,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717832676] [2024-11-24 02:02:59,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717832676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:02:59,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:02:59,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 02:02:59,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928202596] [2024-11-24 02:02:59,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:02:59,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 02:02:59,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:59,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 02:02:59,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-24 02:02:59,634 INFO L87 Difference]: Start difference. First operand 3537 states and 4679 transitions. Second operand has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:03:04,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:04,351 INFO L93 Difference]: Finished difference Result 3669 states and 4828 transitions. [2024-11-24 02:03:04,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 02:03:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 271 [2024-11-24 02:03:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:04,360 INFO L225 Difference]: With dead ends: 3669 [2024-11-24 02:03:04,360 INFO L226 Difference]: Without dead ends: 3667 [2024-11-24 02:03:04,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-11-24 02:03:04,362 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 289 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:04,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 2050 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 02:03:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3667 states. [2024-11-24 02:03:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3667 to 3648. [2024-11-24 02:03:04,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 2889 states have (on average 1.2305295950155763) internal successors, (3555), 2923 states have internal predecessors, (3555), 626 states have call successors, (626), 132 states have call predecessors, (626), 132 states have return successors, (626), 592 states have call predecessors, (626), 626 states have call successors, (626) [2024-11-24 02:03:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4807 transitions. [2024-11-24 02:03:04,827 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4807 transitions. Word has length 271 [2024-11-24 02:03:04,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:04,827 INFO L471 AbstractCegarLoop]: Abstraction has 3648 states and 4807 transitions. [2024-11-24 02:03:04,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 02:03:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4807 transitions. [2024-11-24 02:03:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-24 02:03:04,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:04,829 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:04,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-24 02:03:04,829 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:04,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:04,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1439123225, now seen corresponding path program 1 times [2024-11-24 02:03:04,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:04,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214053605] [2024-11-24 02:03:04,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:04,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-24 02:03:08,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:08,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214053605] [2024-11-24 02:03:08,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214053605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:08,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:08,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 02:03:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4587020] [2024-11-24 02:03:08,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:08,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 02:03:08,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:03:08,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 02:03:08,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:03:08,857 INFO L87 Difference]: Start difference. First operand 3648 states and 4807 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:03:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:03:10,926 INFO L93 Difference]: Finished difference Result 4016 states and 5212 transitions. [2024-11-24 02:03:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:03:10,927 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 271 [2024-11-24 02:03:10,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:03:10,936 INFO L225 Difference]: With dead ends: 4016 [2024-11-24 02:03:10,936 INFO L226 Difference]: Without dead ends: 4014 [2024-11-24 02:03:10,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:03:10,938 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 76 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:03:10,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2290 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 02:03:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2024-11-24 02:03:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3640. [2024-11-24 02:03:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 2881 states have (on average 1.230822631030892) internal successors, (3546), 2915 states have internal predecessors, (3546), 626 states have call successors, (626), 132 states have call predecessors, (626), 132 states have return successors, (626), 592 states have call predecessors, (626), 626 states have call successors, (626) [2024-11-24 02:03:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 4798 transitions. [2024-11-24 02:03:11,440 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 4798 transitions. Word has length 271 [2024-11-24 02:03:11,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:03:11,440 INFO L471 AbstractCegarLoop]: Abstraction has 3640 states and 4798 transitions. [2024-11-24 02:03:11,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-24 02:03:11,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 4798 transitions. [2024-11-24 02:03:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-24 02:03:11,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:03:11,442 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:03:11,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-24 02:03:11,443 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:03:11,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:03:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1627934799, now seen corresponding path program 1 times [2024-11-24 02:03:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:03:11,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435580506] [2024-11-24 02:03:11,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:11,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:03:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 102 proven. 354 refuted. 0 times theorem prover too weak. 2988 trivial. 0 not checked. [2024-11-24 02:03:12,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:03:12,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435580506] [2024-11-24 02:03:12,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435580506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:03:12,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454992597] [2024-11-24 02:03:12,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:03:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:03:12,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:03:12,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:03:12,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80ac8a55-a972-4bb6-8254-ef3466010ab0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 02:03:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:13,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 02:03:13,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:03:17,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1777 proven. 249 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2024-11-24 02:03:17,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:03:56,149 WARN L286 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 31 DAG size of output: 27 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2024-11-24 02:04:26,214 WARN L286 SmtUtils]: Spent 14.57s on a formula simplification. DAG size of input: 30 DAG size of output: 23 (called from [L 188] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne)