./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/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_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/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_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/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 68ec8a45185640c14efe48000e9f98891ce6fe2387f90662afdebba9912124a6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:51:19,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:51:19,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:51:19,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:51:19,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:51:19,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:51:19,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:51:19,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:51:19,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:51:19,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:51:19,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:51:19,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:51:19,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:51:19,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:51:19,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:51:19,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:51:19,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:51:19,291 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:19,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:51:19,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:51:19,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:19,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:51:19,293 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:51:19,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:51:19,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:51:19,294 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_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/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 -> 68ec8a45185640c14efe48000e9f98891ce6fe2387f90662afdebba9912124a6 [2024-11-23 22:51:19,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:51:19,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:51:19,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:51:19,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:51:19,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:51:19,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i [2024-11-23 22:51:22,700 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/data/6f4ddef72/8616f6b817c14c5ea3bd9dbeab2842b7/FLAG19c650c4d [2024-11-23 22:51:22,993 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:51:22,994 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i [2024-11-23 22:51:23,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/data/6f4ddef72/8616f6b817c14c5ea3bd9dbeab2842b7/FLAG19c650c4d [2024-11-23 22:51:23,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/data/6f4ddef72/8616f6b817c14c5ea3bd9dbeab2842b7 [2024-11-23 22:51:23,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:51:23,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:51:23,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:23,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:51:23,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:51:23,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb39d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23, skipping insertion in model container [2024-11-23 22:51:23,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:51:23,241 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_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i[919,932] [2024-11-23 22:51:23,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:23,384 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:51:23,398 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_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i[919,932] [2024-11-23 22:51:23,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:51:23,487 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:51:23,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23 WrapperNode [2024-11-23 22:51:23,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:51:23,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:23,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:51:23,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:51:23,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,562 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2024-11-23 22:51:23,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:51:23,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:51:23,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:51:23,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:51:23,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,614 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]. [2024-11-23 22:51:23,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,632 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,650 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:51:23,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:51:23,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:51:23,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:51:23,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (1/1) ... [2024-11-23 22:51:23,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:51:23,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:23,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:51:23,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:51:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:51:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:51:23,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:51:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:51:23,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:51:23,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:51:23,826 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:51:23,828 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:51:24,439 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-23 22:51:24,440 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:51:24,455 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:51:24,456 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:51:24,456 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:24 BoogieIcfgContainer [2024-11-23 22:51:24,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:51:24,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:51:24,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:51:24,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:51:24,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:51:23" (1/3) ... [2024-11-23 22:51:24,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f624a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:24, skipping insertion in model container [2024-11-23 22:51:24,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:51:23" (2/3) ... [2024-11-23 22:51:24,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f624a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:51:24, skipping insertion in model container [2024-11-23 22:51:24,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:51:24" (3/3) ... [2024-11-23 22:51:24,466 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i [2024-11-23 22:51:24,480 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:51:24,483 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-34.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:51:24,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:51:24,558 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;@caad41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:51:24,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:51:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-23 22:51:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 22:51:24,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:24,578 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:24,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:24,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:24,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1611331877, now seen corresponding path program 1 times [2024-11-23 22:51:24,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:24,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003263574] [2024-11-23 22:51:24,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-23 22:51:25,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003263574] [2024-11-23 22:51:25,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003263574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:51:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535901001] [2024-11-23 22:51:25,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:25,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:51:25,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:51:25,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:51:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:51:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:25,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:51:25,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:51:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2024-11-23 22:51:25,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:51:25,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535901001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:25,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:51:25,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:51:25,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786592239] [2024-11-23 22:51:25,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:25,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:51:25,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:25,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:51:25,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:25,363 INFO L87 Difference]: Start difference. First operand has 103 states, 73 states have (on average 1.4931506849315068) internal successors, (109), 74 states have internal predecessors, (109), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:51:25,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:25,409 INFO L93 Difference]: Finished difference Result 199 states and 347 transitions. [2024-11-23 22:51:25,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:51:25,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 179 [2024-11-23 22:51:25,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:25,421 INFO L225 Difference]: With dead ends: 199 [2024-11-23 22:51:25,422 INFO L226 Difference]: Without dead ends: 99 [2024-11-23 22:51:25,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:51:25,434 INFO L435 NwaCegarLoop]: 156 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, 156 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 [2024-11-23 22:51:25,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:51:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-23 22:51:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-23 22:51:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 70 states have (on average 1.457142857142857) internal successors, (102), 70 states have internal predecessors, (102), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-23 22:51:25,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 156 transitions. [2024-11-23 22:51:25,489 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 156 transitions. Word has length 179 [2024-11-23 22:51:25,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:25,491 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 156 transitions. [2024-11-23 22:51:25,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:51:25,492 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 156 transitions. [2024-11-23 22:51:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-23 22:51:25,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:25,498 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:25,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:51:25,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:51:25,698 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:25,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:25,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1068083871, now seen corresponding path program 1 times [2024-11-23 22:51:25,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:25,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892174903] [2024-11-23 22:51:25,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:25,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:26,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:26,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:26,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892174903] [2024-11-23 22:51:26,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892174903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:26,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:26,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:51:26,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632992356] [2024-11-23 22:51:26,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:26,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:51:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:26,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:51:26,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:51:26,569 INFO L87 Difference]: Start difference. First operand 99 states and 156 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:26,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:26,853 INFO L93 Difference]: Finished difference Result 331 states and 526 transitions. [2024-11-23 22:51:26,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:51:26,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 179 [2024-11-23 22:51:26,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:26,860 INFO L225 Difference]: With dead ends: 331 [2024-11-23 22:51:26,861 INFO L226 Difference]: Without dead ends: 235 [2024-11-23 22:51:26,861 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 [2024-11-23 22:51:26,862 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 170 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:26,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 505 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:51:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-23 22:51:26,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 203. [2024-11-23 22:51:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 146 states have (on average 1.4863013698630136) internal successors, (217), 146 states have internal predecessors, (217), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-23 22:51:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 325 transitions. [2024-11-23 22:51:26,905 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 325 transitions. Word has length 179 [2024-11-23 22:51:26,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 325 transitions. [2024-11-23 22:51:26,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 325 transitions. [2024-11-23 22:51:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-23 22:51:26,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:26,909 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:26,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:51:26,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:26,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:26,910 INFO L85 PathProgramCache]: Analyzing trace with hash -897775331, now seen corresponding path program 1 times [2024-11-23 22:51:26,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:26,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091558290] [2024-11-23 22:51:26,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:26,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:27,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091558290] [2024-11-23 22:51:27,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091558290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:27,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:27,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:51:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856664915] [2024-11-23 22:51:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:27,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:51:27,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:27,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:51:27,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:51:27,479 INFO L87 Difference]: Start difference. First operand 203 states and 325 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:27,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:27,994 INFO L93 Difference]: Finished difference Result 594 states and 952 transitions. [2024-11-23 22:51:27,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:51:27,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 180 [2024-11-23 22:51:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:28,002 INFO L225 Difference]: With dead ends: 594 [2024-11-23 22:51:28,002 INFO L226 Difference]: Without dead ends: 394 [2024-11-23 22:51:28,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:51:28,004 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 187 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:28,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 592 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 22:51:28,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-23 22:51:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 207. [2024-11-23 22:51:28,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 150 states have (on average 1.4733333333333334) internal successors, (221), 150 states have internal predecessors, (221), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-23 22:51:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 329 transitions. [2024-11-23 22:51:28,069 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 329 transitions. Word has length 180 [2024-11-23 22:51:28,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:28,072 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 329 transitions. [2024-11-23 22:51:28,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 329 transitions. [2024-11-23 22:51:28,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:51:28,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:28,078 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:28,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:51:28,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:28,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:28,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1053291099, now seen corresponding path program 1 times [2024-11-23 22:51:28,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:28,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28796437] [2024-11-23 22:51:28,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:28,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:32,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:32,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28796437] [2024-11-23 22:51:32,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28796437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:32,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:32,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 22:51:32,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323334947] [2024-11-23 22:51:32,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:32,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:51:32,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:32,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:51:32,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:51:32,592 INFO L87 Difference]: Start difference. First operand 207 states and 329 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:33,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:33,440 INFO L93 Difference]: Finished difference Result 618 states and 972 transitions. [2024-11-23 22:51:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:51:33,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-23 22:51:33,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:33,459 INFO L225 Difference]: With dead ends: 618 [2024-11-23 22:51:33,459 INFO L226 Difference]: Without dead ends: 414 [2024-11-23 22:51:33,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:51:33,461 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 221 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:33,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 460 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:51:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-23 22:51:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 296. [2024-11-23 22:51:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.4786729857819905) internal successors, (312), 211 states have internal predecessors, (312), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:51:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 474 transitions. [2024-11-23 22:51:33,545 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 474 transitions. Word has length 181 [2024-11-23 22:51:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:33,547 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 474 transitions. [2024-11-23 22:51:33,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:33,548 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 474 transitions. [2024-11-23 22:51:33,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:51:33,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:33,550 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:33,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:51:33,551 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:33,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:33,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1971543126, now seen corresponding path program 1 times [2024-11-23 22:51:33,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:33,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46012419] [2024-11-23 22:51:33,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46012419] [2024-11-23 22:51:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46012419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:48,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:48,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:51:48,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486514830] [2024-11-23 22:51:48,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:48,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:51:48,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:48,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:51:48,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:51:48,256 INFO L87 Difference]: Start difference. First operand 296 states and 474 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:51,673 INFO L93 Difference]: Finished difference Result 792 states and 1231 transitions. [2024-11-23 22:51:51,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:51:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-23 22:51:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:51,678 INFO L225 Difference]: With dead ends: 792 [2024-11-23 22:51:51,678 INFO L226 Difference]: Without dead ends: 551 [2024-11-23 22:51:51,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:51:51,679 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 623 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:51,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 766 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:51:51,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-23 22:51:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 397. [2024-11-23 22:51:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 312 states have (on average 1.4903846153846154) internal successors, (465), 312 states have internal predecessors, (465), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:51:51,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 627 transitions. [2024-11-23 22:51:51,742 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 627 transitions. Word has length 181 [2024-11-23 22:51:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:51,743 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 627 transitions. [2024-11-23 22:51:51,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 627 transitions. [2024-11-23 22:51:51,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:51:51,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:51,746 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:51,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:51:51,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:51,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -196535764, now seen corresponding path program 1 times [2024-11-23 22:51:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929449125] [2024-11-23 22:51:51,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:54,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:54,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929449125] [2024-11-23 22:51:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929449125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:54,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:54,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:51:54,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556815158] [2024-11-23 22:51:54,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:54,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:51:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:54,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:51:54,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:54,451 INFO L87 Difference]: Start difference. First operand 397 states and 627 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:56,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:51:56,209 INFO L93 Difference]: Finished difference Result 852 states and 1333 transitions. [2024-11-23 22:51:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:51:56,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-23 22:51:56,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:51:56,214 INFO L225 Difference]: With dead ends: 852 [2024-11-23 22:51:56,214 INFO L226 Difference]: Without dead ends: 632 [2024-11-23 22:51:56,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:51:56,217 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 481 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:51:56,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 598 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:51:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-23 22:51:56,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 462. [2024-11-23 22:51:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 377 states have (on average 1.4960212201591512) internal successors, (564), 377 states have internal predecessors, (564), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:51:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 726 transitions. [2024-11-23 22:51:56,294 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 726 transitions. Word has length 181 [2024-11-23 22:51:56,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:51:56,295 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 726 transitions. [2024-11-23 22:51:56,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:51:56,295 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 726 transitions. [2024-11-23 22:51:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:51:56,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:51:56,299 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:51:56,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:51:56,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:51:56,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:51:56,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1291484756, now seen corresponding path program 1 times [2024-11-23 22:51:56,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:51:56,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201899890] [2024-11-23 22:51:56,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:51:56,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:51:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:51:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:51:59,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:51:59,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201899890] [2024-11-23 22:51:59,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201899890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:51:59,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:51:59,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:51:59,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309009715] [2024-11-23 22:51:59,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:51:59,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 22:51:59,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:51:59,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 22:51:59,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:51:59,383 INFO L87 Difference]: Start difference. First operand 462 states and 726 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:01,263 INFO L93 Difference]: Finished difference Result 820 states and 1269 transitions. [2024-11-23 22:52:01,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 22:52:01,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-23 22:52:01,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:01,268 INFO L225 Difference]: With dead ends: 820 [2024-11-23 22:52:01,268 INFO L226 Difference]: Without dead ends: 598 [2024-11-23 22:52:01,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:52:01,273 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 386 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:01,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 620 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:52:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-23 22:52:01,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 482. [2024-11-23 22:52:01,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 397 states have (on average 1.5012594458438286) internal successors, (596), 397 states have internal predecessors, (596), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:01,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 758 transitions. [2024-11-23 22:52:01,336 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 758 transitions. Word has length 181 [2024-11-23 22:52:01,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:01,336 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 758 transitions. [2024-11-23 22:52:01,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:01,337 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 758 transitions. [2024-11-23 22:52:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-23 22:52:01,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:01,339 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:01,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:52:01,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:01,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:01,340 INFO L85 PathProgramCache]: Analyzing trace with hash 32222745, now seen corresponding path program 1 times [2024-11-23 22:52:01,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:01,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297744181] [2024-11-23 22:52:01,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:01,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:01,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:01,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297744181] [2024-11-23 22:52:01,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297744181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:01,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:01,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:52:01,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209143718] [2024-11-23 22:52:01,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:01,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:52:01,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:01,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:52:01,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:52:01,822 INFO L87 Difference]: Start difference. First operand 482 states and 758 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:02,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:02,204 INFO L93 Difference]: Finished difference Result 746 states and 1169 transitions. [2024-11-23 22:52:02,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:52:02,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 181 [2024-11-23 22:52:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:02,209 INFO L225 Difference]: With dead ends: 746 [2024-11-23 22:52:02,210 INFO L226 Difference]: Without dead ends: 474 [2024-11-23 22:52:02,211 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 [2024-11-23 22:52:02,212 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 103 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:02,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 384 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:52:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-23 22:52:02,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2024-11-23 22:52:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 361 states have (on average 1.479224376731302) internal successors, (534), 361 states have internal predecessors, (534), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:02,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 696 transitions. [2024-11-23 22:52:02,284 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 696 transitions. Word has length 181 [2024-11-23 22:52:02,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:02,284 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 696 transitions. [2024-11-23 22:52:02,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 696 transitions. [2024-11-23 22:52:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-23 22:52:02,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:02,289 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:02,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:52:02,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:02,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:02,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1718840494, now seen corresponding path program 1 times [2024-11-23 22:52:02,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:02,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366607004] [2024-11-23 22:52:02,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:02,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:05,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:05,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:05,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366607004] [2024-11-23 22:52:05,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366607004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:05,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:05,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:52:05,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751816028] [2024-11-23 22:52:05,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:05,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:52:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:05,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:52:05,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:52:05,513 INFO L87 Difference]: Start difference. First operand 446 states and 696 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:07,610 INFO L93 Difference]: Finished difference Result 931 states and 1423 transitions. [2024-11-23 22:52:07,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:52:07,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-23 22:52:07,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:07,614 INFO L225 Difference]: With dead ends: 931 [2024-11-23 22:52:07,614 INFO L226 Difference]: Without dead ends: 633 [2024-11-23 22:52:07,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:52:07,616 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 271 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:07,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 834 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:52:07,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-23 22:52:07,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 474. [2024-11-23 22:52:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 387 states have (on average 1.4392764857881137) internal successors, (557), 387 states have internal predecessors, (557), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:07,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 719 transitions. [2024-11-23 22:52:07,678 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 719 transitions. Word has length 182 [2024-11-23 22:52:07,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:07,678 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 719 transitions. [2024-11-23 22:52:07,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 719 transitions. [2024-11-23 22:52:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-23 22:52:07,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:07,683 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:07,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:52:07,683 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:07,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:07,684 INFO L85 PathProgramCache]: Analyzing trace with hash 242027515, now seen corresponding path program 1 times [2024-11-23 22:52:07,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:07,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309981239] [2024-11-23 22:52:07,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:07,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:11,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:11,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309981239] [2024-11-23 22:52:11,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309981239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:11,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:11,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:52:11,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418902303] [2024-11-23 22:52:11,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:11,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:52:11,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:11,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:52:11,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:52:11,862 INFO L87 Difference]: Start difference. First operand 474 states and 719 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:15,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:15,796 INFO L93 Difference]: Finished difference Result 1113 states and 1676 transitions. [2024-11-23 22:52:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:52:15,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-23 22:52:15,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:15,800 INFO L225 Difference]: With dead ends: 1113 [2024-11-23 22:52:15,801 INFO L226 Difference]: Without dead ends: 823 [2024-11-23 22:52:15,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:52:15,802 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 506 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:15,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 632 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:52:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-23 22:52:15,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 603. [2024-11-23 22:52:15,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 516 states have (on average 1.4670542635658914) internal successors, (757), 516 states have internal predecessors, (757), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 919 transitions. [2024-11-23 22:52:15,866 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 919 transitions. Word has length 182 [2024-11-23 22:52:15,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:15,866 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 919 transitions. [2024-11-23 22:52:15,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 919 transitions. [2024-11-23 22:52:15,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-23 22:52:15,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:15,869 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:15,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 22:52:15,869 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:15,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:15,870 INFO L85 PathProgramCache]: Analyzing trace with hash 922085885, now seen corresponding path program 1 times [2024-11-23 22:52:15,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:15,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922064530] [2024-11-23 22:52:15,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:15,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:24,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:24,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922064530] [2024-11-23 22:52:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922064530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:24,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:24,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:52:24,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571086733] [2024-11-23 22:52:24,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:24,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:52:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:24,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:52:24,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:52:24,333 INFO L87 Difference]: Start difference. First operand 603 states and 919 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:28,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:28,360 INFO L93 Difference]: Finished difference Result 1108 states and 1658 transitions. [2024-11-23 22:52:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:52:28,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 182 [2024-11-23 22:52:28,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:28,365 INFO L225 Difference]: With dead ends: 1108 [2024-11-23 22:52:28,365 INFO L226 Difference]: Without dead ends: 719 [2024-11-23 22:52:28,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:52:28,367 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 292 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:28,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1079 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:52:28,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-11-23 22:52:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 603. [2024-11-23 22:52:28,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 516 states have (on average 1.4651162790697674) internal successors, (756), 516 states have internal predecessors, (756), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:28,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 918 transitions. [2024-11-23 22:52:28,431 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 918 transitions. Word has length 182 [2024-11-23 22:52:28,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:28,432 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 918 transitions. [2024-11-23 22:52:28,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 918 transitions. [2024-11-23 22:52:28,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:52:28,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:28,434 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:28,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 22:52:28,434 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:28,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:28,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1654759403, now seen corresponding path program 1 times [2024-11-23 22:52:28,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:28,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071833762] [2024-11-23 22:52:28,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:28,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:32,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:32,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071833762] [2024-11-23 22:52:32,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071833762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:32,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:32,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:52:32,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510158346] [2024-11-23 22:52:32,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:32,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:52:32,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:32,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:52:32,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:52:32,997 INFO L87 Difference]: Start difference. First operand 603 states and 918 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:36,383 INFO L93 Difference]: Finished difference Result 1533 states and 2281 transitions. [2024-11-23 22:52:36,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:52:36,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-23 22:52:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:36,387 INFO L225 Difference]: With dead ends: 1533 [2024-11-23 22:52:36,387 INFO L226 Difference]: Without dead ends: 1215 [2024-11-23 22:52:36,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:52:36,389 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 449 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:36,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 620 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:52:36,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-23 22:52:36,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 689. [2024-11-23 22:52:36,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 602 states have (on average 1.4684385382059801) internal successors, (884), 602 states have internal predecessors, (884), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:36,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1046 transitions. [2024-11-23 22:52:36,455 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1046 transitions. Word has length 183 [2024-11-23 22:52:36,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:36,455 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 1046 transitions. [2024-11-23 22:52:36,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1046 transitions. [2024-11-23 22:52:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:52:36,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:36,458 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:36,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 22:52:36,458 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:36,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:36,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1619139539, now seen corresponding path program 1 times [2024-11-23 22:52:36,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:36,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057585340] [2024-11-23 22:52:36,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:36,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:40,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057585340] [2024-11-23 22:52:40,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057585340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:40,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:52:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880861239] [2024-11-23 22:52:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:40,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:52:40,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:40,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:52:40,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:52:40,398 INFO L87 Difference]: Start difference. First operand 689 states and 1046 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:43,370 INFO L93 Difference]: Finished difference Result 1383 states and 2081 transitions. [2024-11-23 22:52:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:52:43,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-23 22:52:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:43,374 INFO L225 Difference]: With dead ends: 1383 [2024-11-23 22:52:43,374 INFO L226 Difference]: Without dead ends: 1033 [2024-11-23 22:52:43,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:52:43,375 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 280 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:43,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 684 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:52:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2024-11-23 22:52:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 609. [2024-11-23 22:52:43,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 522 states have (on average 1.4636015325670497) internal successors, (764), 522 states have internal predecessors, (764), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:52:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 926 transitions. [2024-11-23 22:52:43,437 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 926 transitions. Word has length 183 [2024-11-23 22:52:43,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:43,437 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 926 transitions. [2024-11-23 22:52:43,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:52:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 926 transitions. [2024-11-23 22:52:43,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:52:43,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:43,439 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:43,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 22:52:43,440 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:43,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:43,440 INFO L85 PathProgramCache]: Analyzing trace with hash 508122767, now seen corresponding path program 1 times [2024-11-23 22:52:43,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:43,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369118046] [2024-11-23 22:52:43,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:43,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:52:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:55,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369118046] [2024-11-23 22:52:55,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369118046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:55,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:55,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:52:55,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565467529] [2024-11-23 22:52:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:55,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:52:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:55,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:52:55,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:52:55,682 INFO L87 Difference]: Start difference. First operand 609 states and 926 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:00,187 INFO L93 Difference]: Finished difference Result 1113 states and 1662 transitions. [2024-11-23 22:53:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:53:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-23 22:53:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:00,192 INFO L225 Difference]: With dead ends: 1113 [2024-11-23 22:53:00,192 INFO L226 Difference]: Without dead ends: 787 [2024-11-23 22:53:00,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:53:00,193 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 457 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:00,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 760 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 22:53:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2024-11-23 22:53:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 617. [2024-11-23 22:53:00,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 530 states have (on average 1.4641509433962263) internal successors, (776), 530 states have internal predecessors, (776), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:53:00,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 938 transitions. [2024-11-23 22:53:00,256 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 938 transitions. Word has length 183 [2024-11-23 22:53:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:00,257 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 938 transitions. [2024-11-23 22:53:00,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 938 transitions. [2024-11-23 22:53:00,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:53:00,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:00,259 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:00,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 22:53:00,259 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:00,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash -586826225, now seen corresponding path program 1 times [2024-11-23 22:53:00,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:00,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544199661] [2024-11-23 22:53:00,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:00,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:53:05,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:05,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544199661] [2024-11-23 22:53:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544199661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:05,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:05,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:53:05,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465020087] [2024-11-23 22:53:05,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:05,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:53:05,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:05,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:53:05,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:53:05,179 INFO L87 Difference]: Start difference. First operand 617 states and 938 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:07,777 INFO L93 Difference]: Finished difference Result 1184 states and 1777 transitions. [2024-11-23 22:53:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-23 22:53:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-23 22:53:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:07,781 INFO L225 Difference]: With dead ends: 1184 [2024-11-23 22:53:07,781 INFO L226 Difference]: Without dead ends: 763 [2024-11-23 22:53:07,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:53:07,783 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 395 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:07,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 929 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-23 22:53:07,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-23 22:53:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 633. [2024-11-23 22:53:07,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 546 states have (on average 1.4523809523809523) internal successors, (793), 546 states have internal predecessors, (793), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:53:07,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 955 transitions. [2024-11-23 22:53:07,842 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 955 transitions. Word has length 183 [2024-11-23 22:53:07,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:07,843 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 955 transitions. [2024-11-23 22:53:07,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 955 transitions. [2024-11-23 22:53:07,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-23 22:53:07,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:07,845 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:07,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 22:53:07,845 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:07,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1188181137, now seen corresponding path program 1 times [2024-11-23 22:53:07,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:07,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434322816] [2024-11-23 22:53:07,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:07,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:53:20,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:53:20,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434322816] [2024-11-23 22:53:20,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434322816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:20,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:20,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:53:20,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54936740] [2024-11-23 22:53:20,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:20,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:53:20,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:53:20,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:53:20,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:53:20,133 INFO L87 Difference]: Start difference. First operand 633 states and 955 transitions. Second operand has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:26,056 INFO L93 Difference]: Finished difference Result 1263 states and 1853 transitions. [2024-11-23 22:53:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:53:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 183 [2024-11-23 22:53:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:26,060 INFO L225 Difference]: With dead ends: 1263 [2024-11-23 22:53:26,060 INFO L226 Difference]: Without dead ends: 937 [2024-11-23 22:53:26,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:53:26,061 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 463 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:26,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 953 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 22:53:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-23 22:53:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 679. [2024-11-23 22:53:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 592 states have (on average 1.4560810810810811) internal successors, (862), 592 states have internal predecessors, (862), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:53:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1024 transitions. [2024-11-23 22:53:26,131 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1024 transitions. Word has length 183 [2024-11-23 22:53:26,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:26,132 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 1024 transitions. [2024-11-23 22:53:26,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.4) internal successors, (51), 15 states have internal predecessors, (51), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:53:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1024 transitions. [2024-11-23 22:53:26,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:53:26,134 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:26,134 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:26,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-23 22:53:26,134 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:26,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash 420908108, now seen corresponding path program 1 times [2024-11-23 22:53:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:53:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749097865] [2024-11-23 22:53:26,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:53:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:54:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:54:14,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:54:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749097865] [2024-11-23 22:54:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749097865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:54:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:54:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:54:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059665710] [2024-11-23 22:54:14,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:54:14,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:54:14,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:54:14,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:54:14,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:54:14,563 INFO L87 Difference]: Start difference. First operand 679 states and 1024 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:54:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:54:16,439 INFO L93 Difference]: Finished difference Result 1060 states and 1555 transitions. [2024-11-23 22:54:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:54:16,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 184 [2024-11-23 22:54:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:54:16,443 INFO L225 Difference]: With dead ends: 1060 [2024-11-23 22:54:16,443 INFO L226 Difference]: Without dead ends: 1058 [2024-11-23 22:54:16,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:54:16,445 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 432 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:54:16,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1239 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:54:16,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2024-11-23 22:54:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 792. [2024-11-23 22:54:16,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 705 states have (on average 1.4595744680851064) internal successors, (1029), 705 states have internal predecessors, (1029), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:54:16,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1191 transitions. [2024-11-23 22:54:16,533 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1191 transitions. Word has length 184 [2024-11-23 22:54:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:54:16,534 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1191 transitions. [2024-11-23 22:54:16,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:54:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1191 transitions. [2024-11-23 22:54:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:54:16,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:54:16,536 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:54:16,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 22:54:16,537 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:54:16,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:54:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1950831154, now seen corresponding path program 1 times [2024-11-23 22:54:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:54:16,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247464060] [2024-11-23 22:54:16,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:54:16,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:54:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:55:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:02,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247464060] [2024-11-23 22:55:02,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247464060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:02,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:02,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:55:02,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372348258] [2024-11-23 22:55:02,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:02,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:55:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:02,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:55:02,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:55:02,987 INFO L87 Difference]: Start difference. First operand 792 states and 1191 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:55:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:05,240 INFO L93 Difference]: Finished difference Result 1015 states and 1492 transitions. [2024-11-23 22:55:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:55:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 184 [2024-11-23 22:55:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:05,244 INFO L225 Difference]: With dead ends: 1015 [2024-11-23 22:55:05,244 INFO L226 Difference]: Without dead ends: 1013 [2024-11-23 22:55:05,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-23 22:55:05,245 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 332 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:05,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1268 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:55:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2024-11-23 22:55:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 901. [2024-11-23 22:55:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 814 states have (on average 1.4545454545454546) internal successors, (1184), 814 states have internal predecessors, (1184), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:55:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1346 transitions. [2024-11-23 22:55:05,315 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1346 transitions. Word has length 184 [2024-11-23 22:55:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:05,316 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1346 transitions. [2024-11-23 22:55:05,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:55:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1346 transitions. [2024-11-23 22:55:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:55:05,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:05,318 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:05,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 22:55:05,318 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:05,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash -88564982, now seen corresponding path program 1 times [2024-11-23 22:55:05,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:05,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576025166] [2024-11-23 22:55:05,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:05,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:05,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:55:05,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:05,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576025166] [2024-11-23 22:55:05,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576025166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:05,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:05,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:55:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086740583] [2024-11-23 22:55:05,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:05,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:55:05,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:05,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:55:05,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:55:05,503 INFO L87 Difference]: Start difference. First operand 901 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:05,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:05,713 INFO L93 Difference]: Finished difference Result 1457 states and 2176 transitions. [2024-11-23 22:55:05,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:55:05,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 184 [2024-11-23 22:55:05,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:05,716 INFO L225 Difference]: With dead ends: 1457 [2024-11-23 22:55:05,716 INFO L226 Difference]: Without dead ends: 884 [2024-11-23 22:55:05,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:55:05,717 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 120 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:05,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 576 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:55:05,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-23 22:55:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 858. [2024-11-23 22:55:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 771 states have (on average 1.450064850843061) internal successors, (1118), 771 states have internal predecessors, (1118), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:55:05,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1280 transitions. [2024-11-23 22:55:05,786 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1280 transitions. Word has length 184 [2024-11-23 22:55:05,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:05,787 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1280 transitions. [2024-11-23 22:55:05,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1280 transitions. [2024-11-23 22:55:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:55:05,789 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:05,789 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:05,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-23 22:55:05,790 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:05,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash 257873448, now seen corresponding path program 1 times [2024-11-23 22:55:05,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:05,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050003268] [2024-11-23 22:55:05,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:05,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:55:13,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050003268] [2024-11-23 22:55:13,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050003268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:13,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:13,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:55:13,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793423483] [2024-11-23 22:55:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:13,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:55:13,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:13,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:55:13,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:55:13,766 INFO L87 Difference]: Start difference. First operand 858 states and 1280 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:16,531 INFO L93 Difference]: Finished difference Result 1312 states and 1942 transitions. [2024-11-23 22:55:16,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:55:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 184 [2024-11-23 22:55:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:16,536 INFO L225 Difference]: With dead ends: 1312 [2024-11-23 22:55:16,536 INFO L226 Difference]: Without dead ends: 974 [2024-11-23 22:55:16,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:55:16,538 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 333 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:16,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 893 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:55:16,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-11-23 22:55:16,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 836. [2024-11-23 22:55:16,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 749 states have (on average 1.4526034712950602) internal successors, (1088), 749 states have internal predecessors, (1088), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:55:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1250 transitions. [2024-11-23 22:55:16,614 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1250 transitions. Word has length 184 [2024-11-23 22:55:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:16,615 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1250 transitions. [2024-11-23 22:55:16,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1250 transitions. [2024-11-23 22:55:16,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-23 22:55:16,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:16,617 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:16,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-23 22:55:16,617 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:16,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 425744849, now seen corresponding path program 1 times [2024-11-23 22:55:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747664179] [2024-11-23 22:55:16,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:55:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:55:19,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:55:19,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747664179] [2024-11-23 22:55:19,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747664179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:55:19,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:55:19,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-23 22:55:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358642918] [2024-11-23 22:55:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:55:19,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-23 22:55:19,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:55:19,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-23 22:55:19,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 22:55:19,573 INFO L87 Difference]: Start difference. First operand 836 states and 1250 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:21,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:55:21,232 INFO L93 Difference]: Finished difference Result 1352 states and 2010 transitions. [2024-11-23 22:55:21,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:55:21,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 184 [2024-11-23 22:55:21,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:55:21,236 INFO L225 Difference]: With dead ends: 1352 [2024-11-23 22:55:21,236 INFO L226 Difference]: Without dead ends: 1026 [2024-11-23 22:55:21,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:55:21,237 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 247 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:55:21,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 719 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 22:55:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-11-23 22:55:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 836. [2024-11-23 22:55:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 749 states have (on average 1.4526034712950602) internal successors, (1088), 749 states have internal predecessors, (1088), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:55:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1250 transitions. [2024-11-23 22:55:21,281 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1250 transitions. Word has length 184 [2024-11-23 22:55:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:55:21,281 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1250 transitions. [2024-11-23 22:55:21,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:55:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1250 transitions. [2024-11-23 22:55:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 22:55:21,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:55:21,283 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:55:21,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-23 22:55:21,284 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:55:21,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:55:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash -392651868, now seen corresponding path program 1 times [2024-11-23 22:55:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:55:21,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809627451] [2024-11-23 22:55:21,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:55:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:55:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:56:12,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:56:12,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809627451] [2024-11-23 22:56:12,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809627451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:12,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:12,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 22:56:12,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913348030] [2024-11-23 22:56:12,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:12,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 22:56:12,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:56:12,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 22:56:12,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:56:12,741 INFO L87 Difference]: Start difference. First operand 836 states and 1250 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:56:16,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:16,260 INFO L93 Difference]: Finished difference Result 1064 states and 1531 transitions. [2024-11-23 22:56:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 22:56:16,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 185 [2024-11-23 22:56:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:16,266 INFO L225 Difference]: With dead ends: 1064 [2024-11-23 22:56:16,266 INFO L226 Difference]: Without dead ends: 1062 [2024-11-23 22:56:16,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=239, Invalid=817, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 22:56:16,268 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 731 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:16,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1097 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 22:56:16,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2024-11-23 22:56:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 853. [2024-11-23 22:56:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 766 states have (on average 1.4543080939947781) internal successors, (1114), 766 states have internal predecessors, (1114), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:56:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1276 transitions. [2024-11-23 22:56:16,316 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1276 transitions. Word has length 185 [2024-11-23 22:56:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:16,317 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1276 transitions. [2024-11-23 22:56:16,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:56:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1276 transitions. [2024-11-23 22:56:16,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 22:56:16,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:16,319 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:16,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-23 22:56:16,320 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:16,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:16,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1403769118, now seen corresponding path program 1 times [2024-11-23 22:56:16,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:56:16,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402405243] [2024-11-23 22:56:16,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:16,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:56:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:56:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:56:16,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:56:16,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402405243] [2024-11-23 22:56:16,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402405243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:56:16,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:56:16,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 22:56:16,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986168164] [2024-11-23 22:56:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:56:16,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:56:16,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:56:16,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:56:16,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 22:56:16,429 INFO L87 Difference]: Start difference. First operand 853 states and 1276 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:56:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:56:16,519 INFO L93 Difference]: Finished difference Result 1341 states and 1991 transitions. [2024-11-23 22:56:16,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:56:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 185 [2024-11-23 22:56:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:56:16,522 INFO L225 Difference]: With dead ends: 1341 [2024-11-23 22:56:16,522 INFO L226 Difference]: Without dead ends: 917 [2024-11-23 22:56:16,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:56:16,524 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 58 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:56:16,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 385 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:56:16,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2024-11-23 22:56:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 853. [2024-11-23 22:56:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 766 states have (on average 1.4399477806788512) internal successors, (1103), 766 states have internal predecessors, (1103), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:56:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1265 transitions. [2024-11-23 22:56:16,574 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1265 transitions. Word has length 185 [2024-11-23 22:56:16,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:56:16,575 INFO L471 AbstractCegarLoop]: Abstraction has 853 states and 1265 transitions. [2024-11-23 22:56:16,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:56:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1265 transitions. [2024-11-23 22:56:16,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 22:56:16,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:56:16,577 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:56:16,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-23 22:56:16,577 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:56:16,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:56:16,578 INFO L85 PathProgramCache]: Analyzing trace with hash -902124958, now seen corresponding path program 1 times [2024-11-23 22:56:16,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:56:16,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872113448] [2024-11-23 22:56:16,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:56:16,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:56:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872113448] [2024-11-23 22:57:04,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872113448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:04,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:04,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:57:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561797693] [2024-11-23 22:57:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:04,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:57:04,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:04,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:57:04,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:57:04,846 INFO L87 Difference]: Start difference. First operand 853 states and 1265 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:57:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:07,579 INFO L93 Difference]: Finished difference Result 1022 states and 1463 transitions. [2024-11-23 22:57:07,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:57:07,579 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 185 [2024-11-23 22:57:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:07,583 INFO L225 Difference]: With dead ends: 1022 [2024-11-23 22:57:07,583 INFO L226 Difference]: Without dead ends: 1020 [2024-11-23 22:57:07,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-23 22:57:07,585 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 508 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:07,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 835 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-23 22:57:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-23 22:57:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 870. [2024-11-23 22:57:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 783 states have (on average 1.438058748403576) internal successors, (1126), 783 states have internal predecessors, (1126), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:07,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1288 transitions. [2024-11-23 22:57:07,650 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1288 transitions. Word has length 185 [2024-11-23 22:57:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:07,651 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1288 transitions. [2024-11-23 22:57:07,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 15 states have internal predecessors, (53), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:57:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1288 transitions. [2024-11-23 22:57:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 22:57:07,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:07,653 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:07,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-23 22:57:07,653 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:07,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1307736518, now seen corresponding path program 1 times [2024-11-23 22:57:07,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:07,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226881576] [2024-11-23 22:57:07,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:07,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:16,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:16,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226881576] [2024-11-23 22:57:16,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226881576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:16,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:16,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-23 22:57:16,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941481534] [2024-11-23 22:57:16,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:16,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-23 22:57:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:16,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-23 22:57:16,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:57:16,143 INFO L87 Difference]: Start difference. First operand 870 states and 1288 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:19,319 INFO L93 Difference]: Finished difference Result 1340 states and 1961 transitions. [2024-11-23 22:57:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:57:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 185 [2024-11-23 22:57:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:19,323 INFO L225 Difference]: With dead ends: 1340 [2024-11-23 22:57:19,323 INFO L226 Difference]: Without dead ends: 1010 [2024-11-23 22:57:19,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:57:19,324 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 353 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:19,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 795 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:57:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-11-23 22:57:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 850. [2024-11-23 22:57:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 763 states have (on average 1.4338138925294888) internal successors, (1094), 763 states have internal predecessors, (1094), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1256 transitions. [2024-11-23 22:57:19,370 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1256 transitions. Word has length 185 [2024-11-23 22:57:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:19,371 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1256 transitions. [2024-11-23 22:57:19,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1256 transitions. [2024-11-23 22:57:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-23 22:57:19,373 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:19,373 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:19,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-23 22:57:19,373 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:19,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:19,374 INFO L85 PathProgramCache]: Analyzing trace with hash -627678148, now seen corresponding path program 1 times [2024-11-23 22:57:19,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:19,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711510684] [2024-11-23 22:57:19,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:31,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:31,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711510684] [2024-11-23 22:57:31,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711510684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:31,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:31,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:57:31,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868829976] [2024-11-23 22:57:31,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:31,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:57:31,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:31,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:57:31,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:57:31,085 INFO L87 Difference]: Start difference. First operand 850 states and 1256 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:41,772 INFO L93 Difference]: Finished difference Result 1356 states and 1967 transitions. [2024-11-23 22:57:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 22:57:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 185 [2024-11-23 22:57:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:41,775 INFO L225 Difference]: With dead ends: 1356 [2024-11-23 22:57:41,775 INFO L226 Difference]: Without dead ends: 1026 [2024-11-23 22:57:41,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 22:57:41,777 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 328 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:41,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 975 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 22:57:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-11-23 22:57:41,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 805. [2024-11-23 22:57:41,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 718 states have (on average 1.424791086350975) internal successors, (1023), 718 states have internal predecessors, (1023), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1185 transitions. [2024-11-23 22:57:41,843 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1185 transitions. Word has length 185 [2024-11-23 22:57:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:41,843 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 1185 transitions. [2024-11-23 22:57:41,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:41,844 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1185 transitions. [2024-11-23 22:57:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-23 22:57:41,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:41,845 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:41,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-23 22:57:41,845 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:41,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:41,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2013815488, now seen corresponding path program 1 times [2024-11-23 22:57:41,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:41,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030388534] [2024-11-23 22:57:41,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:41,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:42,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:42,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030388534] [2024-11-23 22:57:42,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030388534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:42,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:42,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:57:42,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577929081] [2024-11-23 22:57:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:42,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:57:42,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:42,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:57:42,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:42,231 INFO L87 Difference]: Start difference. First operand 805 states and 1185 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:42,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:42,971 INFO L93 Difference]: Finished difference Result 1179 states and 1740 transitions. [2024-11-23 22:57:42,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:57:42,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 186 [2024-11-23 22:57:42,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:42,974 INFO L225 Difference]: With dead ends: 1179 [2024-11-23 22:57:42,974 INFO L226 Difference]: Without dead ends: 847 [2024-11-23 22:57:42,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:57:42,975 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 210 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:42,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 556 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:57:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-23 22:57:43,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 803. [2024-11-23 22:57:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 716 states have (on average 1.420391061452514) internal successors, (1017), 716 states have internal predecessors, (1017), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1179 transitions. [2024-11-23 22:57:43,033 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1179 transitions. Word has length 186 [2024-11-23 22:57:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:43,033 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1179 transitions. [2024-11-23 22:57:43,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1179 transitions. [2024-11-23 22:57:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-23 22:57:43,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:43,036 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:43,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-23 22:57:43,036 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:43,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:43,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1612102154, now seen corresponding path program 1 times [2024-11-23 22:57:43,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:43,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825993483] [2024-11-23 22:57:43,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:43,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825993483] [2024-11-23 22:57:43,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825993483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:43,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:43,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:57:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770209028] [2024-11-23 22:57:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:43,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:57:43,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:43,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:57:43,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:57:43,418 INFO L87 Difference]: Start difference. First operand 803 states and 1179 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:43,837 INFO L93 Difference]: Finished difference Result 1277 states and 1878 transitions. [2024-11-23 22:57:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:57:43,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 186 [2024-11-23 22:57:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:43,842 INFO L225 Difference]: With dead ends: 1277 [2024-11-23 22:57:43,842 INFO L226 Difference]: Without dead ends: 822 [2024-11-23 22:57:43,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:43,843 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 119 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:43,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 432 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:57:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-23 22:57:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 802. [2024-11-23 22:57:43,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 715 states have (on average 1.4195804195804196) internal successors, (1015), 715 states have internal predecessors, (1015), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:43,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1177 transitions. [2024-11-23 22:57:43,925 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1177 transitions. Word has length 186 [2024-11-23 22:57:43,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:43,926 INFO L471 AbstractCegarLoop]: Abstraction has 802 states and 1177 transitions. [2024-11-23 22:57:43,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:43,926 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1177 transitions. [2024-11-23 22:57:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-23 22:57:43,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:43,928 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:43,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-23 22:57:43,928 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:43,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:43,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1046589581, now seen corresponding path program 1 times [2024-11-23 22:57:43,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:43,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682463325] [2024-11-23 22:57:43,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:43,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:44,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:44,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682463325] [2024-11-23 22:57:44,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682463325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:44,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:44,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:57:44,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915607971] [2024-11-23 22:57:44,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:44,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:57:44,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:44,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:57:44,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:57:44,022 INFO L87 Difference]: Start difference. First operand 802 states and 1177 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:44,195 INFO L93 Difference]: Finished difference Result 1331 states and 1976 transitions. [2024-11-23 22:57:44,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:57:44,196 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 188 [2024-11-23 22:57:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:44,200 INFO L225 Difference]: With dead ends: 1331 [2024-11-23 22:57:44,200 INFO L226 Difference]: Without dead ends: 877 [2024-11-23 22:57:44,201 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 [2024-11-23 22:57:44,201 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 72 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:44,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 298 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:57:44,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-23 22:57:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 811. [2024-11-23 22:57:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 724 states have (on average 1.4392265193370166) internal successors, (1042), 724 states have internal predecessors, (1042), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1204 transitions. [2024-11-23 22:57:44,279 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1204 transitions. Word has length 188 [2024-11-23 22:57:44,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:44,280 INFO L471 AbstractCegarLoop]: Abstraction has 811 states and 1204 transitions. [2024-11-23 22:57:44,280 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1204 transitions. [2024-11-23 22:57:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-23 22:57:44,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:44,282 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:44,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-23 22:57:44,282 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:44,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:44,282 INFO L85 PathProgramCache]: Analyzing trace with hash 948092090, now seen corresponding path program 1 times [2024-11-23 22:57:44,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:44,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866340448] [2024-11-23 22:57:44,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:44,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866340448] [2024-11-23 22:57:44,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866340448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:44,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:44,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:57:44,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064807588] [2024-11-23 22:57:44,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:44,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:57:44,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:44,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:57:44,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:44,587 INFO L87 Difference]: Start difference. First operand 811 states and 1204 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:45,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:45,321 INFO L93 Difference]: Finished difference Result 1358 states and 2013 transitions. [2024-11-23 22:57:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:57:45,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 189 [2024-11-23 22:57:45,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:45,325 INFO L225 Difference]: With dead ends: 1358 [2024-11-23 22:57:45,325 INFO L226 Difference]: Without dead ends: 918 [2024-11-23 22:57:45,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:57:45,327 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 145 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:45,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 716 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 22:57:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2024-11-23 22:57:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 868. [2024-11-23 22:57:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 781 states have (on average 1.4379001280409731) internal successors, (1123), 781 states have internal predecessors, (1123), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1285 transitions. [2024-11-23 22:57:45,393 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1285 transitions. Word has length 189 [2024-11-23 22:57:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:45,394 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1285 transitions. [2024-11-23 22:57:45,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1285 transitions. [2024-11-23 22:57:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-23 22:57:45,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:45,395 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:45,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-23 22:57:45,395 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:45,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1018343037, now seen corresponding path program 1 times [2024-11-23 22:57:45,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:45,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577729984] [2024-11-23 22:57:45,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:45,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577729984] [2024-11-23 22:57:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577729984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:57:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905987035] [2024-11-23 22:57:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:45,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:57:45,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:45,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:57:45,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:45,754 INFO L87 Difference]: Start difference. First operand 868 states and 1285 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:46,374 INFO L93 Difference]: Finished difference Result 1368 states and 2022 transitions. [2024-11-23 22:57:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:57:46,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 189 [2024-11-23 22:57:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:46,378 INFO L225 Difference]: With dead ends: 1368 [2024-11-23 22:57:46,378 INFO L226 Difference]: Without dead ends: 920 [2024-11-23 22:57:46,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:57:46,384 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 155 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:46,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 723 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-23 22:57:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-23 22:57:46,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 823. [2024-11-23 22:57:46,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 736 states have (on average 1.4293478260869565) internal successors, (1052), 736 states have internal predecessors, (1052), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:46,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1214 transitions. [2024-11-23 22:57:46,442 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1214 transitions. Word has length 189 [2024-11-23 22:57:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:46,443 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1214 transitions. [2024-11-23 22:57:46,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1214 transitions. [2024-11-23 22:57:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:57:46,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:46,444 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:46,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-23 22:57:46,444 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:46,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:46,444 INFO L85 PathProgramCache]: Analyzing trace with hash 850561196, now seen corresponding path program 1 times [2024-11-23 22:57:46,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:46,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169116588] [2024-11-23 22:57:46,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:46,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:46,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169116588] [2024-11-23 22:57:46,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169116588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:46,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:46,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:57:46,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523011186] [2024-11-23 22:57:46,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:46,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:57:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:46,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:57:46,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:57:46,692 INFO L87 Difference]: Start difference. First operand 823 states and 1214 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:47,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:47,061 INFO L93 Difference]: Finished difference Result 1281 states and 1906 transitions. [2024-11-23 22:57:47,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:57:47,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 192 [2024-11-23 22:57:47,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:47,065 INFO L225 Difference]: With dead ends: 1281 [2024-11-23 22:57:47,068 INFO L226 Difference]: Without dead ends: 778 [2024-11-23 22:57:47,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:57:47,069 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:47,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 452 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:57:47,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-23 22:57:47,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 760. [2024-11-23 22:57:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 673 states have (on average 1.4309063893016345) internal successors, (963), 673 states have internal predecessors, (963), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:47,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1125 transitions. [2024-11-23 22:57:47,130 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1125 transitions. Word has length 192 [2024-11-23 22:57:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:47,130 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1125 transitions. [2024-11-23 22:57:47,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1125 transitions. [2024-11-23 22:57:47,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:57:47,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:47,132 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:47,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-23 22:57:47,132 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:47,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:47,132 INFO L85 PathProgramCache]: Analyzing trace with hash -697736925, now seen corresponding path program 1 times [2024-11-23 22:57:47,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:47,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567179155] [2024-11-23 22:57:47,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:57:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:57:48,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:57:48,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567179155] [2024-11-23 22:57:48,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567179155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:57:48,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:57:48,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:57:48,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609265188] [2024-11-23 22:57:48,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:57:48,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:57:48,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:57:48,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:57:48,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:57:48,987 INFO L87 Difference]: Start difference. First operand 760 states and 1125 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:50,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:57:50,835 INFO L93 Difference]: Finished difference Result 1268 states and 1872 transitions. [2024-11-23 22:57:50,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:57:50,835 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 192 [2024-11-23 22:57:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:57:50,839 INFO L225 Difference]: With dead ends: 1268 [2024-11-23 22:57:50,839 INFO L226 Difference]: Without dead ends: 824 [2024-11-23 22:57:50,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:57:50,840 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 296 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:57:50,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 967 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 22:57:50,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-23 22:57:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 782. [2024-11-23 22:57:50,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 695 states have (on average 1.4172661870503598) internal successors, (985), 695 states have internal predecessors, (985), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:57:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1147 transitions. [2024-11-23 22:57:50,888 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1147 transitions. Word has length 192 [2024-11-23 22:57:50,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:57:50,888 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1147 transitions. [2024-11-23 22:57:50,888 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:57:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1147 transitions. [2024-11-23 22:57:50,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:57:50,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:57:50,889 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:57:50,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-23 22:57:50,890 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:57:50,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:57:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1718805279, now seen corresponding path program 1 times [2024-11-23 22:57:50,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:57:50,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673588837] [2024-11-23 22:57:50,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:57:50,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:57:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:58:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:58:40,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:58:40,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673588837] [2024-11-23 22:58:40,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673588837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:58:40,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:58:40,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-23 22:58:40,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479777674] [2024-11-23 22:58:40,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:58:40,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-23 22:58:40,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:58:40,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-23 22:58:40,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:58:40,870 INFO L87 Difference]: Start difference. First operand 782 states and 1147 transitions. Second operand has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 21 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:58:50,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:58:50,648 INFO L93 Difference]: Finished difference Result 978 states and 1376 transitions. [2024-11-23 22:58:50,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-23 22:58:50,648 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), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2024-11-23 22:58:50,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:58:50,651 INFO L225 Difference]: With dead ends: 978 [2024-11-23 22:58:50,652 INFO L226 Difference]: Without dead ends: 976 [2024-11-23 22:58:50,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=505, Invalid=2045, Unknown=0, NotChecked=0, Total=2550 [2024-11-23 22:58:50,653 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 828 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:58:50,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1034 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-23 22:58:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-23 22:58:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 815. [2024-11-23 22:58:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 728 states have (on average 1.4175824175824177) internal successors, (1032), 728 states have internal predecessors, (1032), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:58:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1194 transitions. [2024-11-23 22:58:50,712 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1194 transitions. Word has length 192 [2024-11-23 22:58:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:58:50,712 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1194 transitions. [2024-11-23 22:58:50,713 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), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:58:50,713 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1194 transitions. [2024-11-23 22:58:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:58:50,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:58:50,713 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:58:50,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-23 22:58:50,714 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:58:50,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:58:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1791191837, now seen corresponding path program 1 times [2024-11-23 22:58:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:58:50,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906789723] [2024-11-23 22:58:50,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:58:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:58:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:59:35,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:35,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906789723] [2024-11-23 22:59:35,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906789723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:35,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:35,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 22:59:35,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887708781] [2024-11-23 22:59:35,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:35,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 22:59:35,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:35,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 22:59:35,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-23 22:59:35,252 INFO L87 Difference]: Start difference. First operand 815 states and 1194 transitions. Second operand has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:59:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:42,737 INFO L93 Difference]: Finished difference Result 1029 states and 1432 transitions. [2024-11-23 22:59:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-23 22:59:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2024-11-23 22:59:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:42,741 INFO L225 Difference]: With dead ends: 1029 [2024-11-23 22:59:42,741 INFO L226 Difference]: Without dead ends: 1027 [2024-11-23 22:59:42,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=432, Invalid=1638, Unknown=0, NotChecked=0, Total=2070 [2024-11-23 22:59:42,742 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 346 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:42,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 1041 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 22:59:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-23 22:59:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 847. [2024-11-23 22:59:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 760 states have (on average 1.4157894736842105) internal successors, (1076), 760 states have internal predecessors, (1076), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:59:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1238 transitions. [2024-11-23 22:59:42,794 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1238 transitions. Word has length 192 [2024-11-23 22:59:42,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:42,795 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1238 transitions. [2024-11-23 22:59:42,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 19 states have internal predecessors, (60), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 22:59:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1238 transitions. [2024-11-23 22:59:42,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:59:42,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:42,796 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:42,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-23 22:59:42,796 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:42,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash -234788269, now seen corresponding path program 1 times [2024-11-23 22:59:42,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532023909] [2024-11-23 22:59:42,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:59:45,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:45,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532023909] [2024-11-23 22:59:45,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532023909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:45,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:45,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-23 22:59:45,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603395377] [2024-11-23 22:59:45,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:45,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 22:59:45,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:45,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 22:59:45,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-23 22:59:45,503 INFO L87 Difference]: Start difference. First operand 847 states and 1238 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:59:48,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:48,800 INFO L93 Difference]: Finished difference Result 1385 states and 2019 transitions. [2024-11-23 22:59:48,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:59:48,800 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 192 [2024-11-23 22:59:48,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:48,803 INFO L225 Difference]: With dead ends: 1385 [2024-11-23 22:59:48,803 INFO L226 Difference]: Without dead ends: 913 [2024-11-23 22:59:48,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2024-11-23 22:59:48,804 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 241 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:48,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 976 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-23 22:59:48,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-11-23 22:59:48,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 841. [2024-11-23 22:59:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 754 states have (on average 1.4217506631299734) internal successors, (1072), 754 states have internal predecessors, (1072), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:59:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1234 transitions. [2024-11-23 22:59:48,859 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1234 transitions. Word has length 192 [2024-11-23 22:59:48,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:48,859 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1234 transitions. [2024-11-23 22:59:48,860 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:59:48,860 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1234 transitions. [2024-11-23 22:59:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-23 22:59:48,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:48,861 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:48,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-23 22:59:48,862 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:48,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:48,862 INFO L85 PathProgramCache]: Analyzing trace with hash 23377169, now seen corresponding path program 1 times [2024-11-23 22:59:48,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:48,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667750885] [2024-11-23 22:59:48,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:48,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:59:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 22:59:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:59:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667750885] [2024-11-23 22:59:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667750885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:59:49,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:59:49,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 22:59:49,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640866840] [2024-11-23 22:59:49,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:59:49,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:59:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:59:49,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:59:49,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:59:49,300 INFO L87 Difference]: Start difference. First operand 841 states and 1234 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:59:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:59:50,659 INFO L93 Difference]: Finished difference Result 1367 states and 1998 transitions. [2024-11-23 22:59:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-23 22:59:50,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 192 [2024-11-23 22:59:50,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:59:50,662 INFO L225 Difference]: With dead ends: 1367 [2024-11-23 22:59:50,663 INFO L226 Difference]: Without dead ends: 927 [2024-11-23 22:59:50,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:59:50,664 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 198 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:59:50,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1199 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:59:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-23 22:59:50,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 841. [2024-11-23 22:59:50,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 754 states have (on average 1.4190981432360743) internal successors, (1070), 754 states have internal predecessors, (1070), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 22:59:50,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1232 transitions. [2024-11-23 22:59:50,723 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1232 transitions. Word has length 192 [2024-11-23 22:59:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:59:50,723 INFO L471 AbstractCegarLoop]: Abstraction has 841 states and 1232 transitions. [2024-11-23 22:59:50,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 22:59:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1232 transitions. [2024-11-23 22:59:50,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-23 22:59:50,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:59:50,725 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:59:50,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-23 22:59:50,725 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:59:50,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:59:50,726 INFO L85 PathProgramCache]: Analyzing trace with hash -6773793, now seen corresponding path program 1 times [2024-11-23 22:59:50,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:59:50,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278116274] [2024-11-23 22:59:50,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:59:50,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:59:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:00:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:00:37,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:00:37,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278116274] [2024-11-23 23:00:37,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278116274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:00:37,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:00:37,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-23 23:00:37,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705446513] [2024-11-23 23:00:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:00:37,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 23:00:37,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:00:37,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 23:00:37,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2024-11-23 23:00:37,424 INFO L87 Difference]: Start difference. First operand 841 states and 1232 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:00:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:00:48,683 INFO L93 Difference]: Finished difference Result 955 states and 1350 transitions. [2024-11-23 23:00:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-23 23:00:48,684 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 193 [2024-11-23 23:00:48,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:00:48,687 INFO L225 Difference]: With dead ends: 955 [2024-11-23 23:00:48,687 INFO L226 Difference]: Without dead ends: 953 [2024-11-23 23:00:48,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=561, Invalid=2195, Unknown=0, NotChecked=0, Total=2756 [2024-11-23 23:00:48,688 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 660 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 2398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:00:48,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 1138 Invalid, 2398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-23 23:00:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-23 23:00:48,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 838. [2024-11-23 23:00:48,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 751 states have (on average 1.4181091877496672) internal successors, (1065), 751 states have internal predecessors, (1065), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:00:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1227 transitions. [2024-11-23 23:00:48,743 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1227 transitions. Word has length 193 [2024-11-23 23:00:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:00:48,743 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1227 transitions. [2024-11-23 23:00:48,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:00:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1227 transitions. [2024-11-23 23:00:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-23 23:00:48,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:00:48,745 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:00:48,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-23 23:00:48,745 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:00:48,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:00:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2044210205, now seen corresponding path program 1 times [2024-11-23 23:00:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:00:48,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085307752] [2024-11-23 23:00:48,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:00:48,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:00:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:01:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:01:41,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:01:41,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085307752] [2024-11-23 23:01:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085307752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:01:41,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:01:41,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-23 23:01:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643321720] [2024-11-23 23:01:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:01:41,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-23 23:01:41,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:01:41,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-23 23:01:41,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-11-23 23:01:41,833 INFO L87 Difference]: Start difference. First operand 838 states and 1227 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:01:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:01:48,203 INFO L93 Difference]: Finished difference Result 987 states and 1383 transitions. [2024-11-23 23:01:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-23 23:01:48,203 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 193 [2024-11-23 23:01:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:01:48,206 INFO L225 Difference]: With dead ends: 987 [2024-11-23 23:01:48,206 INFO L226 Difference]: Without dead ends: 985 [2024-11-23 23:01:48,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=456, Invalid=1800, Unknown=0, NotChecked=0, Total=2256 [2024-11-23 23:01:48,207 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 386 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:01:48,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1127 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-23 23:01:48,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-23 23:01:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 835. [2024-11-23 23:01:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 748 states have (on average 1.4171122994652405) internal successors, (1060), 748 states have internal predecessors, (1060), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:01:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1222 transitions. [2024-11-23 23:01:48,307 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1222 transitions. Word has length 193 [2024-11-23 23:01:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:01:48,308 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1222 transitions. [2024-11-23 23:01:48,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:01:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1222 transitions. [2024-11-23 23:01:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-23 23:01:48,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:01:48,309 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:01:48,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-23 23:01:48,310 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:01:48,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:01:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2143681002, now seen corresponding path program 1 times [2024-11-23 23:01:48,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:01:48,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122670051] [2024-11-23 23:01:48,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:01:48,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:01:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:02:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:02:35,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:02:35,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122670051] [2024-11-23 23:02:35,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122670051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:02:35,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:02:35,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:02:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472217750] [2024-11-23 23:02:35,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:02:35,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:02:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:02:35,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:02:35,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:02:35,778 INFO L87 Difference]: Start difference. First operand 835 states and 1222 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:02:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:02:40,610 INFO L93 Difference]: Finished difference Result 914 states and 1304 transitions. [2024-11-23 23:02:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-23 23:02:40,611 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), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 196 [2024-11-23 23:02:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:02:40,613 INFO L225 Difference]: With dead ends: 914 [2024-11-23 23:02:40,614 INFO L226 Difference]: Without dead ends: 912 [2024-11-23 23:02:40,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=246, Invalid=1014, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 23:02:40,614 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 382 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:02:40,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 1265 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-23 23:02:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2024-11-23 23:02:40,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 836. [2024-11-23 23:02:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 749 states have (on average 1.417890520694259) internal successors, (1062), 749 states have internal predecessors, (1062), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:02:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1224 transitions. [2024-11-23 23:02:40,672 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1224 transitions. Word has length 196 [2024-11-23 23:02:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:02:40,672 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1224 transitions. [2024-11-23 23:02:40,673 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), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:02:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1224 transitions. [2024-11-23 23:02:40,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-23 23:02:40,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:02:40,674 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:02:40,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-23 23:02:40,674 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:02:40,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:02:40,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2071294444, now seen corresponding path program 1 times [2024-11-23 23:02:40,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:02:40,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655830348] [2024-11-23 23:02:40,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:02:40,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:02:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:03:28,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:28,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655830348] [2024-11-23 23:03:28,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655830348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:28,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:28,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:03:28,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986647351] [2024-11-23 23:03:28,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:28,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:03:28,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:28,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:03:28,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:03:28,561 INFO L87 Difference]: Start difference. First operand 836 states and 1224 transitions. Second operand has 19 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 19 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:03:34,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:34,120 INFO L93 Difference]: Finished difference Result 931 states and 1324 transitions. [2024-11-23 23:03:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-23 23:03:34,121 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), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 196 [2024-11-23 23:03:34,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:34,124 INFO L225 Difference]: With dead ends: 931 [2024-11-23 23:03:34,124 INFO L226 Difference]: Without dead ends: 929 [2024-11-23 23:03:34,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=228, Invalid=962, Unknown=0, NotChecked=0, Total=1190 [2024-11-23 23:03:34,125 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 419 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 1788 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:34,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1270 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1788 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-23 23:03:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-23 23:03:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 837. [2024-11-23 23:03:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 750 states have (on average 1.4186666666666667) internal successors, (1064), 750 states have internal predecessors, (1064), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:03:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1226 transitions. [2024-11-23 23:03:34,225 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1226 transitions. Word has length 196 [2024-11-23 23:03:34,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:34,225 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1226 transitions. [2024-11-23 23:03:34,225 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), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:03:34,226 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1226 transitions. [2024-11-23 23:03:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-23 23:03:34,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:34,227 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:34,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-23 23:03:34,227 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:34,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash -100302296, now seen corresponding path program 1 times [2024-11-23 23:03:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:34,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899649844] [2024-11-23 23:03:34,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:03:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:03:34,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:03:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899649844] [2024-11-23 23:03:34,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899649844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:03:34,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:03:34,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:03:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529790354] [2024-11-23 23:03:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:03:34,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:03:34,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:03:34,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:03:34,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:03:34,859 INFO L87 Difference]: Start difference. First operand 837 states and 1226 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:03:35,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:03:35,989 INFO L93 Difference]: Finished difference Result 1335 states and 1960 transitions. [2024-11-23 23:03:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 23:03:35,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 196 [2024-11-23 23:03:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:03:35,993 INFO L225 Difference]: With dead ends: 1335 [2024-11-23 23:03:35,993 INFO L226 Difference]: Without dead ends: 830 [2024-11-23 23:03:35,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:03:35,995 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 164 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 23:03:35,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 795 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 23:03:35,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-23 23:03:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 776. [2024-11-23 23:03:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 689 states have (on average 1.4194484760522497) internal successors, (978), 689 states have internal predecessors, (978), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:03:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1140 transitions. [2024-11-23 23:03:36,094 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1140 transitions. Word has length 196 [2024-11-23 23:03:36,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:03:36,095 INFO L471 AbstractCegarLoop]: Abstraction has 776 states and 1140 transitions. [2024-11-23 23:03:36,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-23 23:03:36,095 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1140 transitions. [2024-11-23 23:03:36,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-23 23:03:36,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:03:36,097 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:03:36,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-23 23:03:36,097 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:03:36,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:03:36,097 INFO L85 PathProgramCache]: Analyzing trace with hash -528783370, now seen corresponding path program 1 times [2024-11-23 23:03:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:03:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695021671] [2024-11-23 23:03:36,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:03:36,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:03:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:04:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:04:27,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:04:27,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695021671] [2024-11-23 23:04:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695021671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:04:27,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:04:27,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:04:27,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731689401] [2024-11-23 23:04:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:04:27,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:04:27,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:04:27,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:04:27,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:04:27,909 INFO L87 Difference]: Start difference. First operand 776 states and 1140 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:04:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:04:32,062 INFO L93 Difference]: Finished difference Result 838 states and 1204 transitions. [2024-11-23 23:04:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 23:04:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2024-11-23 23:04:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:04:32,065 INFO L225 Difference]: With dead ends: 838 [2024-11-23 23:04:32,066 INFO L226 Difference]: Without dead ends: 836 [2024-11-23 23:04:32,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2024-11-23 23:04:32,067 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 420 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-23 23:04:32,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 1331 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-23 23:04:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-23 23:04:32,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 765. [2024-11-23 23:04:32,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 678 states have (on average 1.4233038348082596) internal successors, (965), 678 states have internal predecessors, (965), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:04:32,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1127 transitions. [2024-11-23 23:04:32,129 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1127 transitions. Word has length 197 [2024-11-23 23:04:32,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:04:32,130 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1127 transitions. [2024-11-23 23:04:32,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:04:32,130 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1127 transitions. [2024-11-23 23:04:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-23 23:04:32,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:04:32,131 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:04:32,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-23 23:04:32,131 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:04:32,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:04:32,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1522200628, now seen corresponding path program 1 times [2024-11-23 23:04:32,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:04:32,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225279142] [2024-11-23 23:04:32,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:04:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:04:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-23 23:05:21,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:21,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225279142] [2024-11-23 23:05:21,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225279142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:05:21,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:05:21,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-23 23:05:21,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595821308] [2024-11-23 23:05:21,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:21,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:05:21,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:21,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:05:21,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:05:21,793 INFO L87 Difference]: Start difference. First operand 765 states and 1127 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:05:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:05:26,873 INFO L93 Difference]: Finished difference Result 838 states and 1204 transitions. [2024-11-23 23:05:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:05:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2024-11-23 23:05:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:05:26,876 INFO L225 Difference]: With dead ends: 838 [2024-11-23 23:05:26,877 INFO L226 Difference]: Without dead ends: 836 [2024-11-23 23:05:26,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2024-11-23 23:05:26,877 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 204 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 2027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:05:26,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 1334 Invalid, 2027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-23 23:05:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-23 23:05:26,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 754. [2024-11-23 23:05:26,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 667 states have (on average 1.4272863568215892) internal successors, (952), 667 states have internal predecessors, (952), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-23 23:05:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1114 transitions. [2024-11-23 23:05:26,986 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1114 transitions. Word has length 197 [2024-11-23 23:05:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:05:26,987 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1114 transitions. [2024-11-23 23:05:26,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-23 23:05:26,987 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1114 transitions. [2024-11-23 23:05:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-23 23:05:26,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:05:26,990 INFO L218 NwaCegarLoop]: trace histogram [54, 54, 54, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:05:26,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-23 23:05:26,991 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:05:26,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:05:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash -747876452, now seen corresponding path program 1 times [2024-11-23 23:05:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:05:26,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448914697] [2024-11-23 23:05:26,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:05:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5792 backedges. 61 proven. 7 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2024-11-23 23:05:27,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:05:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448914697] [2024-11-23 23:05:27,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448914697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:05:27,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279474555] [2024-11-23 23:05:27,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:05:27,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:05:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:05:27,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:05:27,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccdbf8a3-4400-4fb3-a15c-e89f74ec3244/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:05:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:05:27,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-23 23:05:27,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:05:31,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5792 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 5773 trivial. 0 not checked. [2024-11-23 23:05:31,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:05:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5792 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 5773 trivial. 0 not checked. [2024-11-23 23:05:36,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279474555] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 23:05:36,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 23:05:36,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6, 12] total 24 [2024-11-23 23:05:36,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213382515] [2024-11-23 23:05:36,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:05:36,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:05:36,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:05:36,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:05:36,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2024-11-23 23:05:36,984 INFO L87 Difference]: Start difference. First operand 754 states and 1114 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27)