./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB --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 125f40803e1b985402482e09336346a774ad0c00eff4ec5b89ac9ebb2ee5c085 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:05:30,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:05:30,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:05:30,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:05:30,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:05:30,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:05:30,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:05:30,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:05:30,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:05:30,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:05:30,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:05:30,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:05:30,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:05:30,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:05:30,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:05:30,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:05:30,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:05:30,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:05:30,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:05:30,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:05:30,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:05:30,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:05:30,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:05:30,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:05:30,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:05:30,286 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:05:30,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:30,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:05:30,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:30,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:05:30,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:05:30,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:05:30,289 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_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 125f40803e1b985402482e09336346a774ad0c00eff4ec5b89ac9ebb2ee5c085 [2024-11-28 05:05:30,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:05:30,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:05:30,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:05:30,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:05:30,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:05:30,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i [2024-11-28 05:05:33,626 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/data/81f6c369c/36f701dafc8b47fdae01de3cc99e45f4/FLAGf6958edc6 [2024-11-28 05:05:33,893 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:05:33,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i [2024-11-28 05:05:33,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/data/81f6c369c/36f701dafc8b47fdae01de3cc99e45f4/FLAGf6958edc6 [2024-11-28 05:05:33,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/data/81f6c369c/36f701dafc8b47fdae01de3cc99e45f4 [2024-11-28 05:05:33,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:05:33,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:05:33,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:33,921 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:05:33,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:05:33,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:33" (1/1) ... [2024-11-28 05:05:33,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f583ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:33, skipping insertion in model container [2024-11-28 05:05:33,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:05:33" (1/1) ... [2024-11-28 05:05:33,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:05:34,114 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_d3029b86-ad82-42ca-bf33-9bc964100d7b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i[915,928] [2024-11-28 05:05:34,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:34,183 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:05:34,194 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_d3029b86-ad82-42ca-bf33-9bc964100d7b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-34.i[915,928] [2024-11-28 05:05:34,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:05:34,275 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:05:34,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34 WrapperNode [2024-11-28 05:05:34,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:05:34,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:34,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:05:34,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:05:34,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,353 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2024-11-28 05:05:34,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:05:34,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:05:34,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:05:34,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:05:34,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,369 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,400 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]. [2024-11-28 05:05:34,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,415 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,416 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:05:34,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:05:34,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:05:34,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:05:34,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (1/1) ... [2024-11-28 05:05:34,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:05:34,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:34,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:05:34,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:05:34,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:05:34,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:05:34,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:05:34,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:05:34,588 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:05:34,590 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:05:35,074 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-28 05:05:35,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:05:35,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:05:35,092 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:05:35,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:35 BoogieIcfgContainer [2024-11-28 05:05:35,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:05:35,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:05:35,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:05:35,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:05:35,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:05:33" (1/3) ... [2024-11-28 05:05:35,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7556eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:35, skipping insertion in model container [2024-11-28 05:05:35,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:05:34" (2/3) ... [2024-11-28 05:05:35,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7556eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:05:35, skipping insertion in model container [2024-11-28 05:05:35,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:05:35" (3/3) ... [2024-11-28 05:05:35,106 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-34.i [2024-11-28 05:05:35,121 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:05:35,123 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-34.i that has 2 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:05:35,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:05:35,189 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;@50603b55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:05:35,189 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:05:35,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:05:35,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 05:05:35,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:35,204 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:35,204 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:35,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:35,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1167158208, now seen corresponding path program 1 times [2024-11-28 05:05:35,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:35,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712064785] [2024-11-28 05:05:35,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:35,524 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 05:05:35,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:35,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712064785] [2024-11-28 05:05:35,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712064785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:35,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813831447] [2024-11-28 05:05:35,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:35,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:35,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:35,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:05:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:35,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:05:35,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 05:05:35,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:05:35,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813831447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:35,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:05:35,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:05:35,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593606639] [2024-11-28 05:05:35,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:35,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:05:35,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:35,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:05:35,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:05:35,780 INFO L87 Difference]: Start difference. First operand has 71 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:05:35,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:35,817 INFO L93 Difference]: Finished difference Result 135 states and 223 transitions. [2024-11-28 05:05:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:05:35,819 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2024-11-28 05:05:35,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:35,825 INFO L225 Difference]: With dead ends: 135 [2024-11-28 05:05:35,825 INFO L226 Difference]: Without dead ends: 67 [2024-11-28 05:05:35,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:05:35,832 INFO L435 NwaCegarLoop]: 101 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, 101 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 [2024-11-28 05:05:35,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:05:35,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-11-28 05:05:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-11-28 05:05:35,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:05:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 101 transitions. [2024-11-28 05:05:35,878 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 101 transitions. Word has length 94 [2024-11-28 05:05:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:35,878 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 101 transitions. [2024-11-28 05:05:35,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:05:35,879 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 101 transitions. [2024-11-28 05:05:35,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 05:05:35,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:35,882 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:35,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:05:36,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:36,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:36,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:36,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1294889278, now seen corresponding path program 1 times [2024-11-28 05:05:36,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:36,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461101054] [2024-11-28 05:05:36,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:36,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:05:36,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:36,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461101054] [2024-11-28 05:05:36,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461101054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:36,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:36,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:05:36,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109569560] [2024-11-28 05:05:36,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:36,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:05:36,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:36,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:05:36,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:05:36,844 INFO L87 Difference]: Start difference. First operand 67 states and 101 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:05:37,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:37,049 INFO L93 Difference]: Finished difference Result 225 states and 342 transitions. [2024-11-28 05:05:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:05:37,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-11-28 05:05:37,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:37,053 INFO L225 Difference]: With dead ends: 225 [2024-11-28 05:05:37,054 INFO L226 Difference]: Without dead ends: 161 [2024-11-28 05:05:37,054 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 [2024-11-28 05:05:37,058 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 129 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:37,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 321 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:05:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-28 05:05:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 131. [2024-11-28 05:05:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 102 states have (on average 1.4411764705882353) internal successors, (147), 102 states have internal predecessors, (147), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 05:05:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 199 transitions. [2024-11-28 05:05:37,085 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 199 transitions. Word has length 94 [2024-11-28 05:05:37,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:37,086 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 199 transitions. [2024-11-28 05:05:37,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:05:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 199 transitions. [2024-11-28 05:05:37,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 05:05:37,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:37,088 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:37,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:05:37,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:37,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:37,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1947848368, now seen corresponding path program 1 times [2024-11-28 05:05:37,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:37,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962459873] [2024-11-28 05:05:37,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:37,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:05:37,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:05:37,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962459873] [2024-11-28 05:05:37,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962459873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:05:37,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:05:37,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:05:37,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671229524] [2024-11-28 05:05:37,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:05:37,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:05:37,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:05:37,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:05:37,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:05:37,519 INFO L87 Difference]: Start difference. First operand 131 states and 199 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:05:37,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:37,790 INFO L93 Difference]: Finished difference Result 382 states and 580 transitions. [2024-11-28 05:05:37,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:05:37,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-28 05:05:37,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:37,794 INFO L225 Difference]: With dead ends: 382 [2024-11-28 05:05:37,794 INFO L226 Difference]: Without dead ends: 254 [2024-11-28 05:05:37,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:05:37,797 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 158 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:37,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 305 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:05:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-28 05:05:37,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 135. [2024-11-28 05:05:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 106 states have (on average 1.4245283018867925) internal successors, (151), 106 states have internal predecessors, (151), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 05:05:37,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 203 transitions. [2024-11-28 05:05:37,834 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 203 transitions. Word has length 95 [2024-11-28 05:05:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:37,834 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 203 transitions. [2024-11-28 05:05:37,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:05:37,835 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 203 transitions. [2024-11-28 05:05:37,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 05:05:37,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:37,836 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:37,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:05:37,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:05:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 343445546, now seen corresponding path program 1 times [2024-11-28 05:05:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:05:37,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564156817] [2024-11-28 05:05:37,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:05:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:08,348 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:08,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564156817] [2024-11-28 05:06:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564156817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:08,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:08,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:06:08,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754260374] [2024-11-28 05:06:08,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:08,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:06:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:08,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:06:08,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:06:08,354 INFO L87 Difference]: Start difference. First operand 135 states and 203 transitions. Second operand has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:12,992 INFO L93 Difference]: Finished difference Result 535 states and 786 transitions. [2024-11-28 05:06:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:06:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 05:06:12,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:12,996 INFO L225 Difference]: With dead ends: 535 [2024-11-28 05:06:12,997 INFO L226 Difference]: Without dead ends: 403 [2024-11-28 05:06:12,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:06:12,999 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 525 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:12,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 531 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 05:06:13,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-28 05:06:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 249. [2024-11-28 05:06:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 206 states have (on average 1.4223300970873787) internal successors, (293), 206 states have internal predecessors, (293), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 371 transitions. [2024-11-28 05:06:13,031 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 371 transitions. Word has length 96 [2024-11-28 05:06:13,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:13,032 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 371 transitions. [2024-11-28 05:06:13,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 371 transitions. [2024-11-28 05:06:13,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 05:06:13,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:13,034 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:13,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:06:13,035 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:13,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:13,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2118452908, now seen corresponding path program 1 times [2024-11-28 05:06:13,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:13,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130769856] [2024-11-28 05:06:13,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:13,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:15,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130769856] [2024-11-28 05:06:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130769856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:15,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 05:06:15,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921692085] [2024-11-28 05:06:15,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:15,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 05:06:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:15,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 05:06:15,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:06:15,785 INFO L87 Difference]: Start difference. First operand 249 states and 371 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:17,090 INFO L93 Difference]: Finished difference Result 608 states and 909 transitions. [2024-11-28 05:06:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:06:17,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 05:06:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:17,094 INFO L225 Difference]: With dead ends: 608 [2024-11-28 05:06:17,094 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 05:06:17,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:06:17,096 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 398 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:17,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 343 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:06:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 05:06:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 294. [2024-11-28 05:06:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 251 states have (on average 1.4183266932270917) internal successors, (356), 251 states have internal predecessors, (356), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 434 transitions. [2024-11-28 05:06:17,130 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 434 transitions. Word has length 96 [2024-11-28 05:06:17,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:17,131 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 434 transitions. [2024-11-28 05:06:17,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:17,131 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 434 transitions. [2024-11-28 05:06:17,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 05:06:17,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:17,133 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:17,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:06:17,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:17,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1023503916, now seen corresponding path program 1 times [2024-11-28 05:06:17,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:17,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538490163] [2024-11-28 05:06:17,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:17,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:23,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:23,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538490163] [2024-11-28 05:06:23,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538490163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:23,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:06:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204216458] [2024-11-28 05:06:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:23,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:06:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:23,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:06:23,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:06:23,088 INFO L87 Difference]: Start difference. First operand 294 states and 434 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:25,010 INFO L93 Difference]: Finished difference Result 602 states and 884 transitions. [2024-11-28 05:06:25,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:06:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 05:06:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:25,013 INFO L225 Difference]: With dead ends: 602 [2024-11-28 05:06:25,014 INFO L226 Difference]: Without dead ends: 456 [2024-11-28 05:06:25,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:06:25,015 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 366 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:25,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 448 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:06:25,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-28 05:06:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 354. [2024-11-28 05:06:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 311 states have (on average 1.459807073954984) internal successors, (454), 311 states have internal predecessors, (454), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 532 transitions. [2024-11-28 05:06:25,059 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 532 transitions. Word has length 96 [2024-11-28 05:06:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:25,059 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 532 transitions. [2024-11-28 05:06:25,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 532 transitions. [2024-11-28 05:06:25,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 05:06:25,062 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:25,062 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:25,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:06:25,063 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:25,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash -926687525, now seen corresponding path program 1 times [2024-11-28 05:06:25,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:25,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589068138] [2024-11-28 05:06:25,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:25,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:26,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:26,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589068138] [2024-11-28 05:06:26,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589068138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:26,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:26,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:06:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792130268] [2024-11-28 05:06:26,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:26,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:06:26,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:26,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:06:26,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:06:26,848 INFO L87 Difference]: Start difference. First operand 354 states and 532 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:27,349 INFO L93 Difference]: Finished difference Result 656 states and 980 transitions. [2024-11-28 05:06:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:06:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 05:06:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:27,353 INFO L225 Difference]: With dead ends: 656 [2024-11-28 05:06:27,353 INFO L226 Difference]: Without dead ends: 472 [2024-11-28 05:06:27,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:06:27,354 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 156 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:27,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 345 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:06:27,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2024-11-28 05:06:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 360. [2024-11-28 05:06:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 317 states have (on average 1.444794952681388) internal successors, (458), 317 states have internal predecessors, (458), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 536 transitions. [2024-11-28 05:06:27,391 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 536 transitions. Word has length 96 [2024-11-28 05:06:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:27,392 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 536 transitions. [2024-11-28 05:06:27,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 536 transitions. [2024-11-28 05:06:27,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 05:06:27,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:27,395 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:27,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:06:27,395 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:27,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:27,396 INFO L85 PathProgramCache]: Analyzing trace with hash -667671704, now seen corresponding path program 1 times [2024-11-28 05:06:27,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:27,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286675300] [2024-11-28 05:06:27,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:27,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:27,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:27,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286675300] [2024-11-28 05:06:27,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286675300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:27,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:27,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:06:27,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402314909] [2024-11-28 05:06:27,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:27,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:06:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:27,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:06:27,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:06:27,692 INFO L87 Difference]: Start difference. First operand 360 states and 536 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:27,976 INFO L93 Difference]: Finished difference Result 576 states and 859 transitions. [2024-11-28 05:06:27,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:06:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2024-11-28 05:06:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:27,979 INFO L225 Difference]: With dead ends: 576 [2024-11-28 05:06:27,979 INFO L226 Difference]: Without dead ends: 350 [2024-11-28 05:06:27,980 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 [2024-11-28 05:06:27,981 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 81 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:27,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 230 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:06:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-28 05:06:28,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 322. [2024-11-28 05:06:28,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 279 states have (on average 1.4050179211469533) internal successors, (392), 279 states have internal predecessors, (392), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 470 transitions. [2024-11-28 05:06:28,017 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 470 transitions. Word has length 96 [2024-11-28 05:06:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:28,018 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 470 transitions. [2024-11-28 05:06:28,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:28,018 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 470 transitions. [2024-11-28 05:06:28,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:06:28,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:28,020 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:28,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:06:28,020 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:28,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:28,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1326331525, now seen corresponding path program 1 times [2024-11-28 05:06:28,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:28,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422621933] [2024-11-28 05:06:28,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:28,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:31,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422621933] [2024-11-28 05:06:31,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422621933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:31,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:06:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427436921] [2024-11-28 05:06:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:31,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:06:31,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:31,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:06:31,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:06:31,123 INFO L87 Difference]: Start difference. First operand 322 states and 470 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:32,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:32,803 INFO L93 Difference]: Finished difference Result 647 states and 936 transitions. [2024-11-28 05:06:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:06:32,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-28 05:06:32,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:32,807 INFO L225 Difference]: With dead ends: 647 [2024-11-28 05:06:32,808 INFO L226 Difference]: Without dead ends: 515 [2024-11-28 05:06:32,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:06:32,812 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 254 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:32,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 576 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:06:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-28 05:06:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 358. [2024-11-28 05:06:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 313 states have (on average 1.3738019169329074) internal successors, (430), 313 states have internal predecessors, (430), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:32,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 508 transitions. [2024-11-28 05:06:32,859 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 508 transitions. Word has length 97 [2024-11-28 05:06:32,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:32,860 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 508 transitions. [2024-11-28 05:06:32,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:32,860 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 508 transitions. [2024-11-28 05:06:32,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:06:32,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:32,862 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:32,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:06:32,862 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:32,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash 491239673, now seen corresponding path program 1 times [2024-11-28 05:06:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:32,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788161498] [2024-11-28 05:06:32,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:32,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:36,565 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:36,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788161498] [2024-11-28 05:06:36,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788161498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:36,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:36,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:06:36,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558012300] [2024-11-28 05:06:36,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:36,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:06:36,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:36,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:06:36,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:06:36,567 INFO L87 Difference]: Start difference. First operand 358 states and 508 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:40,414 INFO L93 Difference]: Finished difference Result 841 states and 1200 transitions. [2024-11-28 05:06:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:06:40,415 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 97 [2024-11-28 05:06:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:40,418 INFO L225 Difference]: With dead ends: 841 [2024-11-28 05:06:40,418 INFO L226 Difference]: Without dead ends: 625 [2024-11-28 05:06:40,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:06:40,420 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 287 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:40,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 461 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:06:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-28 05:06:40,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 441. [2024-11-28 05:06:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 396 states have (on average 1.3914141414141414) internal successors, (551), 396 states have internal predecessors, (551), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 629 transitions. [2024-11-28 05:06:40,464 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 629 transitions. Word has length 97 [2024-11-28 05:06:40,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:40,465 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 629 transitions. [2024-11-28 05:06:40,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:06:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 629 transitions. [2024-11-28 05:06:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:06:40,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:40,466 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:40,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 05:06:40,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:40,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1171298043, now seen corresponding path program 1 times [2024-11-28 05:06:40,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:40,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719750768] [2024-11-28 05:06:40,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:40,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:06:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:06:48,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:06:48,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719750768] [2024-11-28 05:06:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719750768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:06:48,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:06:48,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:06:48,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888237063] [2024-11-28 05:06:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:06:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:06:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:06:48,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:06:48,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:06:48,273 INFO L87 Difference]: Start difference. First operand 441 states and 629 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:06:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:06:51,216 INFO L93 Difference]: Finished difference Result 832 states and 1170 transitions. [2024-11-28 05:06:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:06:51,217 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2024-11-28 05:06:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:06:51,221 INFO L225 Difference]: With dead ends: 832 [2024-11-28 05:06:51,221 INFO L226 Difference]: Without dead ends: 543 [2024-11-28 05:06:51,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:06:51,223 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 272 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:06:51,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 757 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 05:06:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-28 05:06:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 441. [2024-11-28 05:06:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 396 states have (on average 1.3888888888888888) internal successors, (550), 396 states have internal predecessors, (550), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:06:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 628 transitions. [2024-11-28 05:06:51,276 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 628 transitions. Word has length 97 [2024-11-28 05:06:51,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:06:51,276 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 628 transitions. [2024-11-28 05:06:51,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:06:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 628 transitions. [2024-11-28 05:06:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:06:51,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:06:51,282 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:06:51,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:06:51,282 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:06:51,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:06:51,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1743707403, now seen corresponding path program 1 times [2024-11-28 05:06:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:06:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557431942] [2024-11-28 05:06:51,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:06:51,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:06:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:01,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:01,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557431942] [2024-11-28 05:07:01,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557431942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:01,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:01,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 05:07:01,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296277044] [2024-11-28 05:07:01,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:01,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:07:01,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:01,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:07:01,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:07:01,829 INFO L87 Difference]: Start difference. First operand 441 states and 628 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:04,517 INFO L93 Difference]: Finished difference Result 785 states and 1112 transitions. [2024-11-28 05:07:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:07:04,518 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:04,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:04,520 INFO L225 Difference]: With dead ends: 785 [2024-11-28 05:07:04,520 INFO L226 Difference]: Without dead ends: 557 [2024-11-28 05:07:04,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2024-11-28 05:07:04,522 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 402 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:04,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 471 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:07:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-28 05:07:04,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 421. [2024-11-28 05:07:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 376 states have (on average 1.3936170212765957) internal successors, (524), 376 states have internal predecessors, (524), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:04,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 602 transitions. [2024-11-28 05:07:04,562 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 602 transitions. Word has length 98 [2024-11-28 05:07:04,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:04,564 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 602 transitions. [2024-11-28 05:07:04,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:04,564 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 602 transitions. [2024-11-28 05:07:04,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:07:04,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:04,565 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:04,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:07:04,565 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:04,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1063649033, now seen corresponding path program 1 times [2024-11-28 05:07:04,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:04,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198448561] [2024-11-28 05:07:04,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:04,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:07,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198448561] [2024-11-28 05:07:07,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198448561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:07,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:07,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:07:07,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515879343] [2024-11-28 05:07:07,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:07,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:07:07,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:07,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:07:07,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:07:07,170 INFO L87 Difference]: Start difference. First operand 421 states and 602 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:08,313 INFO L93 Difference]: Finished difference Result 717 states and 1016 transitions. [2024-11-28 05:07:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:07:08,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:08,316 INFO L225 Difference]: With dead ends: 717 [2024-11-28 05:07:08,316 INFO L226 Difference]: Without dead ends: 485 [2024-11-28 05:07:08,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:07:08,317 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 210 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:08,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 378 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:07:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-28 05:07:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 411. [2024-11-28 05:07:08,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 366 states have (on average 1.3934426229508197) internal successors, (510), 366 states have internal predecessors, (510), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 588 transitions. [2024-11-28 05:07:08,356 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 588 transitions. Word has length 98 [2024-11-28 05:07:08,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:08,356 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 588 transitions. [2024-11-28 05:07:08,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 588 transitions. [2024-11-28 05:07:08,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:07:08,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:08,357 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:08,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 05:07:08,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:08,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash -448582361, now seen corresponding path program 1 times [2024-11-28 05:07:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:08,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334331531] [2024-11-28 05:07:08,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:08,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:12,499 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:12,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:12,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334331531] [2024-11-28 05:07:12,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334331531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:12,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:12,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:07:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775018792] [2024-11-28 05:07:12,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:12,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:07:12,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:12,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:07:12,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:07:12,501 INFO L87 Difference]: Start difference. First operand 411 states and 588 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:18,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:18,426 INFO L93 Difference]: Finished difference Result 922 states and 1314 transitions. [2024-11-28 05:07:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:07:18,426 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:18,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:18,430 INFO L225 Difference]: With dead ends: 922 [2024-11-28 05:07:18,430 INFO L226 Difference]: Without dead ends: 704 [2024-11-28 05:07:18,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:07:18,431 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 375 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:18,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 421 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:07:18,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-28 05:07:18,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 427. [2024-11-28 05:07:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 382 states have (on average 1.387434554973822) internal successors, (530), 382 states have internal predecessors, (530), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:18,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 608 transitions. [2024-11-28 05:07:18,474 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 608 transitions. Word has length 98 [2024-11-28 05:07:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:18,476 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 608 transitions. [2024-11-28 05:07:18,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:18,476 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 608 transitions. [2024-11-28 05:07:18,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:07:18,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:18,477 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:18,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 05:07:18,477 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:18,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:18,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1326425001, now seen corresponding path program 1 times [2024-11-28 05:07:18,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:18,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137272146] [2024-11-28 05:07:18,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:18,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:22,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:22,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137272146] [2024-11-28 05:07:22,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137272146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:22,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:22,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 05:07:22,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244686375] [2024-11-28 05:07:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:22,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:07:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:22,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:07:22,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:07:22,740 INFO L87 Difference]: Start difference. First operand 427 states and 608 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:27,979 INFO L93 Difference]: Finished difference Result 917 states and 1302 transitions. [2024-11-28 05:07:27,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 05:07:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:27,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:27,983 INFO L225 Difference]: With dead ends: 917 [2024-11-28 05:07:27,983 INFO L226 Difference]: Without dead ends: 687 [2024-11-28 05:07:27,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:07:27,984 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 406 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:27,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 408 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 05:07:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-28 05:07:28,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 449. [2024-11-28 05:07:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 404 states have (on average 1.386138613861386) internal successors, (560), 404 states have internal predecessors, (560), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:28,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 638 transitions. [2024-11-28 05:07:28,029 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 638 transitions. Word has length 98 [2024-11-28 05:07:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:28,029 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 638 transitions. [2024-11-28 05:07:28,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:28,029 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 638 transitions. [2024-11-28 05:07:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:07:28,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:28,031 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:28,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 05:07:28,031 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:28,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash 231476009, now seen corresponding path program 1 times [2024-11-28 05:07:28,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:28,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326283911] [2024-11-28 05:07:28,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:28,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:34,635 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:34,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:34,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326283911] [2024-11-28 05:07:34,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326283911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:34,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:34,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:07:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709668079] [2024-11-28 05:07:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:34,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:07:34,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:34,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:07:34,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:07:34,636 INFO L87 Difference]: Start difference. First operand 449 states and 638 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:36,903 INFO L93 Difference]: Finished difference Result 920 states and 1301 transitions. [2024-11-28 05:07:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:07:36,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:36,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:36,906 INFO L225 Difference]: With dead ends: 920 [2024-11-28 05:07:36,906 INFO L226 Difference]: Without dead ends: 603 [2024-11-28 05:07:36,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:07:36,908 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 298 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:36,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 397 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 05:07:36,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-28 05:07:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 457. [2024-11-28 05:07:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 412 states have (on average 1.3762135922330097) internal successors, (567), 412 states have internal predecessors, (567), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 645 transitions. [2024-11-28 05:07:36,951 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 645 transitions. Word has length 98 [2024-11-28 05:07:36,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:36,952 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 645 transitions. [2024-11-28 05:07:36,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:36,952 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 645 transitions. [2024-11-28 05:07:36,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 05:07:36,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:36,953 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:36,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 05:07:36,953 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:36,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2006483371, now seen corresponding path program 1 times [2024-11-28 05:07:36,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:36,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462193866] [2024-11-28 05:07:36,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:36,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:45,728 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:07:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462193866] [2024-11-28 05:07:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462193866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:07:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435343125] [2024-11-28 05:07:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:45,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:07:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:45,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:07:45,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:07:45,729 INFO L87 Difference]: Start difference. First operand 457 states and 645 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:07:48,459 INFO L93 Difference]: Finished difference Result 807 states and 1121 transitions. [2024-11-28 05:07:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:07:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 98 [2024-11-28 05:07:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:07:48,461 INFO L225 Difference]: With dead ends: 807 [2024-11-28 05:07:48,461 INFO L226 Difference]: Without dead ends: 565 [2024-11-28 05:07:48,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:07:48,462 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 268 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:07:48,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 459 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:07:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-28 05:07:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 465. [2024-11-28 05:07:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 420 states have (on average 1.369047619047619) internal successors, (575), 420 states have internal predecessors, (575), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:07:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 653 transitions. [2024-11-28 05:07:48,506 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 653 transitions. Word has length 98 [2024-11-28 05:07:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:07:48,506 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 653 transitions. [2024-11-28 05:07:48,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:07:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 653 transitions. [2024-11-28 05:07:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:07:48,508 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:07:48,508 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:48,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 05:07:48,508 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:07:48,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1958487327, now seen corresponding path program 1 times [2024-11-28 05:07:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:48,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257320073] [2024-11-28 05:07:48,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:48,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:08:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:08:39,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257320073] [2024-11-28 05:08:39,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257320073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:08:39,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:08:39,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:08:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88160320] [2024-11-28 05:08:39,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:08:39,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:08:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:08:39,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:08:39,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:08:39,160 INFO L87 Difference]: Start difference. First operand 465 states and 653 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:40,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:40,776 INFO L93 Difference]: Finished difference Result 753 states and 1023 transitions. [2024-11-28 05:08:40,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:08:40,777 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-11-28 05:08:40,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:40,780 INFO L225 Difference]: With dead ends: 753 [2024-11-28 05:08:40,780 INFO L226 Difference]: Without dead ends: 751 [2024-11-28 05:08:40,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-28 05:08:40,781 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 280 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:40,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 836 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:08:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2024-11-28 05:08:40,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 525. [2024-11-28 05:08:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 480 states have (on average 1.3583333333333334) internal successors, (652), 480 states have internal predecessors, (652), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:08:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 730 transitions. [2024-11-28 05:08:40,825 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 730 transitions. Word has length 99 [2024-11-28 05:08:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:40,826 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 730 transitions. [2024-11-28 05:08:40,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:08:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 730 transitions. [2024-11-28 05:08:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:08:40,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:40,827 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:40,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 05:08:40,827 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:08:40,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1140838877, now seen corresponding path program 1 times [2024-11-28 05:08:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:08:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026264247] [2024-11-28 05:08:40,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:40,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:08:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:09:28,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:28,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026264247] [2024-11-28 05:09:28,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026264247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:28,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:28,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:09:28,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020137909] [2024-11-28 05:09:28,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:28,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:09:28,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:28,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:09:28,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:09:28,744 INFO L87 Difference]: Start difference. First operand 525 states and 730 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:30,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:30,440 INFO L93 Difference]: Finished difference Result 784 states and 1061 transitions. [2024-11-28 05:09:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:09:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2024-11-28 05:09:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:30,444 INFO L225 Difference]: With dead ends: 784 [2024-11-28 05:09:30,444 INFO L226 Difference]: Without dead ends: 782 [2024-11-28 05:09:30,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-28 05:09:30,445 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 274 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:30,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 705 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:09:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-28 05:09:30,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 582. [2024-11-28 05:09:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 537 states have (on average 1.3407821229050279) internal successors, (720), 537 states have internal predecessors, (720), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:09:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 798 transitions. [2024-11-28 05:09:30,491 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 798 transitions. Word has length 99 [2024-11-28 05:09:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:30,491 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 798 transitions. [2024-11-28 05:09:30,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:09:30,491 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 798 transitions. [2024-11-28 05:09:30,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:09:30,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:30,493 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:30,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 05:09:30,493 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:30,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:30,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1913778143, now seen corresponding path program 1 times [2024-11-28 05:09:30,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:30,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055399251] [2024-11-28 05:09:30,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:30,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:30,630 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:09:30,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:30,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055399251] [2024-11-28 05:09:30,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055399251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:30,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:30,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:09:30,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546497880] [2024-11-28 05:09:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:30,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:09:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:30,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:09:30,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:09:30,632 INFO L87 Difference]: Start difference. First operand 582 states and 798 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:30,801 INFO L93 Difference]: Finished difference Result 1040 states and 1437 transitions. [2024-11-28 05:09:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:09:30,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-28 05:09:30,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:30,805 INFO L225 Difference]: With dead ends: 1040 [2024-11-28 05:09:30,805 INFO L226 Difference]: Without dead ends: 621 [2024-11-28 05:09:30,806 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 [2024-11-28 05:09:30,806 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 92 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:30,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 371 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:09:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-28 05:09:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 585. [2024-11-28 05:09:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 540 states have (on average 1.3388888888888888) internal successors, (723), 540 states have internal predecessors, (723), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:09:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 801 transitions. [2024-11-28 05:09:30,870 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 801 transitions. Word has length 99 [2024-11-28 05:09:30,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:30,871 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 801 transitions. [2024-11-28 05:09:30,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 801 transitions. [2024-11-28 05:09:30,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:09:30,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:30,873 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:30,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 05:09:30,874 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:30,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1447472124, now seen corresponding path program 1 times [2024-11-28 05:09:30,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:30,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113361250] [2024-11-28 05:09:30,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:30,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:09:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113361250] [2024-11-28 05:09:34,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113361250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:34,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:09:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401007033] [2024-11-28 05:09:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:34,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:09:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:34,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:09:34,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:09:34,718 INFO L87 Difference]: Start difference. First operand 585 states and 801 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:36,911 INFO L93 Difference]: Finished difference Result 1089 states and 1515 transitions. [2024-11-28 05:09:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:09:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-28 05:09:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:36,915 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 05:09:36,915 INFO L226 Difference]: Without dead ends: 847 [2024-11-28 05:09:36,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:09:36,917 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 177 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:36,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 521 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:09:36,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-28 05:09:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 575. [2024-11-28 05:09:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 530 states have (on average 1.3377358490566038) internal successors, (709), 530 states have internal predecessors, (709), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:09:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 787 transitions. [2024-11-28 05:09:36,962 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 787 transitions. Word has length 99 [2024-11-28 05:09:36,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:36,963 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 787 transitions. [2024-11-28 05:09:36,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 787 transitions. [2024-11-28 05:09:36,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:09:36,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:36,965 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:36,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 05:09:36,966 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:36,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:36,967 INFO L85 PathProgramCache]: Analyzing trace with hash -767413754, now seen corresponding path program 1 times [2024-11-28 05:09:36,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:36,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966890853] [2024-11-28 05:09:36,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:36,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:09:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:47,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966890853] [2024-11-28 05:09:47,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966890853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:47,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:47,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 05:09:47,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592811782] [2024-11-28 05:09:47,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:47,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 05:09:47,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:47,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 05:09:47,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 05:09:47,320 INFO L87 Difference]: Start difference. First operand 575 states and 787 transitions. Second operand has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:49,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:49,587 INFO L93 Difference]: Finished difference Result 939 states and 1283 transitions. [2024-11-28 05:09:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:09:49,588 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-28 05:09:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:49,591 INFO L225 Difference]: With dead ends: 939 [2024-11-28 05:09:49,591 INFO L226 Difference]: Without dead ends: 701 [2024-11-28 05:09:49,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:09:49,595 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 240 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:49,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 566 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:09:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-28 05:09:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 555. [2024-11-28 05:09:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 510 states have (on average 1.3392156862745097) internal successors, (683), 510 states have internal predecessors, (683), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:09:49,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 761 transitions. [2024-11-28 05:09:49,645 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 761 transitions. Word has length 99 [2024-11-28 05:09:49,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:49,646 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 761 transitions. [2024-11-28 05:09:49,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 761 transitions. [2024-11-28 05:09:49,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 05:09:49,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:49,648 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:49,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 05:09:49,648 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:49,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:49,649 INFO L85 PathProgramCache]: Analyzing trace with hash 23310250, now seen corresponding path program 1 times [2024-11-28 05:09:49,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:49,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448382306] [2024-11-28 05:09:49,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:49,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:54,141 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:09:54,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:09:54,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448382306] [2024-11-28 05:09:54,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448382306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:09:54,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:09:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:09:54,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309507657] [2024-11-28 05:09:54,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:09:54,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:09:54,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:09:54,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:09:54,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:09:54,143 INFO L87 Difference]: Start difference. First operand 555 states and 761 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:09:58,271 INFO L93 Difference]: Finished difference Result 941 states and 1312 transitions. [2024-11-28 05:09:58,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:09:58,272 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 99 [2024-11-28 05:09:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:09:58,273 INFO L225 Difference]: With dead ends: 941 [2024-11-28 05:09:58,274 INFO L226 Difference]: Without dead ends: 707 [2024-11-28 05:09:58,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=143, Invalid=277, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:09:58,274 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 354 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:09:58,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 418 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:09:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-28 05:09:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 547. [2024-11-28 05:09:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 502 states have (on average 1.3366533864541832) internal successors, (671), 502 states have internal predecessors, (671), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:09:58,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 749 transitions. [2024-11-28 05:09:58,319 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 749 transitions. Word has length 99 [2024-11-28 05:09:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:09:58,319 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 749 transitions. [2024-11-28 05:09:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:09:58,319 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 749 transitions. [2024-11-28 05:09:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:09:58,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:09:58,321 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:09:58,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 05:09:58,321 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:09:58,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:09:58,322 INFO L85 PathProgramCache]: Analyzing trace with hash 27663588, now seen corresponding path program 1 times [2024-11-28 05:09:58,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:09:58,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251107767] [2024-11-28 05:09:58,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:58,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:09:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:52,571 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:10:52,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:52,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251107767] [2024-11-28 05:10:52,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251107767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:52,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:52,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 05:10:52,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221239108] [2024-11-28 05:10:52,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:52,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 05:10:52,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:52,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:10:52,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:10:52,573 INFO L87 Difference]: Start difference. First operand 547 states and 749 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:10:55,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:55,086 INFO L93 Difference]: Finished difference Result 769 states and 1027 transitions. [2024-11-28 05:10:55,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:10:55,086 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-28 05:10:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:55,088 INFO L225 Difference]: With dead ends: 769 [2024-11-28 05:10:55,088 INFO L226 Difference]: Without dead ends: 767 [2024-11-28 05:10:55,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:10:55,089 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 397 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:55,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 600 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:10:55,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-28 05:10:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 568. [2024-11-28 05:10:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 523 states have (on average 1.3422562141491396) internal successors, (702), 523 states have internal predecessors, (702), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:10:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 780 transitions. [2024-11-28 05:10:55,137 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 780 transitions. Word has length 100 [2024-11-28 05:10:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:55,137 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 780 transitions. [2024-11-28 05:10:55,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:10:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 780 transitions. [2024-11-28 05:10:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:10:55,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:55,139 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:55,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 05:10:55,139 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:55,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:55,140 INFO L85 PathProgramCache]: Analyzing trace with hash -983453662, now seen corresponding path program 1 times [2024-11-28 05:10:55,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:55,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44928063] [2024-11-28 05:10:55,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:55,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:10:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:10:55,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:10:55,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44928063] [2024-11-28 05:10:55,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44928063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:10:55,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:10:55,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:10:55,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467307974] [2024-11-28 05:10:55,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:10:55,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:10:55,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:10:55,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:10:55,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:10:55,236 INFO L87 Difference]: Start difference. First operand 568 states and 780 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:10:55,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:10:55,305 INFO L93 Difference]: Finished difference Result 953 states and 1316 transitions. [2024-11-28 05:10:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:10:55,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-28 05:10:55,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:10:55,309 INFO L225 Difference]: With dead ends: 953 [2024-11-28 05:10:55,309 INFO L226 Difference]: Without dead ends: 639 [2024-11-28 05:10:55,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:10:55,310 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 10 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:10:55,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 178 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:10:55,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-28 05:10:55,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 568. [2024-11-28 05:10:55,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 523 states have (on average 1.3173996175908222) internal successors, (689), 523 states have internal predecessors, (689), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:10:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 767 transitions. [2024-11-28 05:10:55,358 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 767 transitions. Word has length 100 [2024-11-28 05:10:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:10:55,358 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 767 transitions. [2024-11-28 05:10:55,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:10:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 767 transitions. [2024-11-28 05:10:55,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:10:55,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:10:55,360 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:10:55,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 05:10:55,360 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:10:55,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:10:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash 450365414, now seen corresponding path program 1 times [2024-11-28 05:10:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:10:55,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690814900] [2024-11-28 05:10:55,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:10:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:10:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:11:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:45,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690814900] [2024-11-28 05:11:45,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690814900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:45,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:45,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 05:11:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364991701] [2024-11-28 05:11:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:45,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:11:45,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:45,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:11:45,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:11:45,710 INFO L87 Difference]: Start difference. First operand 568 states and 767 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:11:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:48,904 INFO L93 Difference]: Finished difference Result 684 states and 904 transitions. [2024-11-28 05:11:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:11:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2024-11-28 05:11:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:48,907 INFO L225 Difference]: With dead ends: 684 [2024-11-28 05:11:48,907 INFO L226 Difference]: Without dead ends: 682 [2024-11-28 05:11:48,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:11:48,908 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 238 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:48,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 725 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:11:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-28 05:11:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 589. [2024-11-28 05:11:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 544 states have (on average 1.318014705882353) internal successors, (717), 544 states have internal predecessors, (717), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:11:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 795 transitions. [2024-11-28 05:11:48,955 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 795 transitions. Word has length 100 [2024-11-28 05:11:48,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:48,956 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 795 transitions. [2024-11-28 05:11:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:11:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 795 transitions. [2024-11-28 05:11:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:11:48,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:48,958 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:48,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 05:11:48,958 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:48,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:48,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1621652658, now seen corresponding path program 1 times [2024-11-28 05:11:48,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:48,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229961648] [2024-11-28 05:11:48,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:48,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:11:52,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:52,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229961648] [2024-11-28 05:11:52,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229961648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:52,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:11:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456003781] [2024-11-28 05:11:52,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:52,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:11:52,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:52,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:11:52,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:11:52,982 INFO L87 Difference]: Start difference. First operand 589 states and 795 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:11:55,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:55,704 INFO L93 Difference]: Finished difference Result 1205 states and 1642 transitions. [2024-11-28 05:11:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:11:55,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-28 05:11:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:55,708 INFO L225 Difference]: With dead ends: 1205 [2024-11-28 05:11:55,709 INFO L226 Difference]: Without dead ends: 975 [2024-11-28 05:11:55,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:11:55,710 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 259 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:55,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 549 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:11:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-28 05:11:55,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 593. [2024-11-28 05:11:55,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 548 states have (on average 1.3193430656934306) internal successors, (723), 548 states have internal predecessors, (723), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:11:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 801 transitions. [2024-11-28 05:11:55,745 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 801 transitions. Word has length 100 [2024-11-28 05:11:55,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:55,745 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 801 transitions. [2024-11-28 05:11:55,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:11:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 801 transitions. [2024-11-28 05:11:55,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:11:55,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:55,747 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:55,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 05:11:55,748 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:11:55,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:55,748 INFO L85 PathProgramCache]: Analyzing trace with hash -898307276, now seen corresponding path program 1 times [2024-11-28 05:11:55,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:55,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171838022] [2024-11-28 05:11:55,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:55,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171838022] [2024-11-28 05:12:06,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171838022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:06,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 05:12:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078480892] [2024-11-28 05:12:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:06,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 05:12:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:06,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:12:06,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:12:06,159 INFO L87 Difference]: Start difference. First operand 593 states and 801 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:10,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:10,873 INFO L93 Difference]: Finished difference Result 949 states and 1286 transitions. [2024-11-28 05:12:10,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:12:10,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-28 05:12:10,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:10,876 INFO L225 Difference]: With dead ends: 949 [2024-11-28 05:12:10,876 INFO L226 Difference]: Without dead ends: 701 [2024-11-28 05:12:10,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-28 05:12:10,877 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 359 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:10,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 454 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:12:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-28 05:12:10,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 585. [2024-11-28 05:12:10,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 540 states have (on average 1.3166666666666667) internal successors, (711), 540 states have internal predecessors, (711), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 789 transitions. [2024-11-28 05:12:10,917 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 789 transitions. Word has length 100 [2024-11-28 05:12:10,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:10,917 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 789 transitions. [2024-11-28 05:12:10,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 789 transitions. [2024-11-28 05:12:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 05:12:10,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:10,919 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:10,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 05:12:10,920 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:10,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash -218248906, now seen corresponding path program 1 times [2024-11-28 05:12:10,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:10,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703284709] [2024-11-28 05:12:10,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:10,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:15,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:15,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703284709] [2024-11-28 05:12:15,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703284709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:15,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:15,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 05:12:15,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045487837] [2024-11-28 05:12:15,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:15,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:12:15,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:15,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:12:15,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:12:15,039 INFO L87 Difference]: Start difference. First operand 585 states and 789 transitions. Second operand has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:17,488 INFO L93 Difference]: Finished difference Result 1018 states and 1388 transitions. [2024-11-28 05:12:17,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:12:17,489 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2024-11-28 05:12:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:17,491 INFO L225 Difference]: With dead ends: 1018 [2024-11-28 05:12:17,491 INFO L226 Difference]: Without dead ends: 784 [2024-11-28 05:12:17,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-28 05:12:17,492 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 198 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:17,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 472 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:12:17,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2024-11-28 05:12:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 557. [2024-11-28 05:12:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 512 states have (on average 1.314453125) internal successors, (673), 512 states have internal predecessors, (673), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 751 transitions. [2024-11-28 05:12:17,546 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 751 transitions. Word has length 100 [2024-11-28 05:12:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:17,547 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 751 transitions. [2024-11-28 05:12:17,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 11 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 751 transitions. [2024-11-28 05:12:17,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:12:17,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:17,548 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:17,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 05:12:17,549 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:17,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:17,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2136274637, now seen corresponding path program 1 times [2024-11-28 05:12:17,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:17,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481229873] [2024-11-28 05:12:17,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:17,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:17,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481229873] [2024-11-28 05:12:17,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481229873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:17,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:17,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:12:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152017663] [2024-11-28 05:12:17,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:17,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:12:17,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:17,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:12:17,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:12:17,932 INFO L87 Difference]: Start difference. First operand 557 states and 751 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:18,552 INFO L93 Difference]: Finished difference Result 864 states and 1174 transitions. [2024-11-28 05:12:18,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:12:18,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-28 05:12:18,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:18,554 INFO L225 Difference]: With dead ends: 864 [2024-11-28 05:12:18,555 INFO L226 Difference]: Without dead ends: 636 [2024-11-28 05:12:18,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:12:18,556 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 136 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:18,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 328 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:12:18,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-28 05:12:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 594. [2024-11-28 05:12:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 549 states have (on average 1.3041894353369763) internal successors, (716), 549 states have internal predecessors, (716), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 794 transitions. [2024-11-28 05:12:18,586 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 794 transitions. Word has length 101 [2024-11-28 05:12:18,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:18,586 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 794 transitions. [2024-11-28 05:12:18,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 794 transitions. [2024-11-28 05:12:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 05:12:18,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:18,588 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:18,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 05:12:18,588 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:18,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 830445237, now seen corresponding path program 1 times [2024-11-28 05:12:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:18,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805332071] [2024-11-28 05:12:18,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:18,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:18,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805332071] [2024-11-28 05:12:18,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805332071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:18,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:18,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:12:18,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902761516] [2024-11-28 05:12:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:18,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:12:18,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:18,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:12:18,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:12:18,882 INFO L87 Difference]: Start difference. First operand 594 states and 794 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:19,518 INFO L93 Difference]: Finished difference Result 952 states and 1278 transitions. [2024-11-28 05:12:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:12:19,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2024-11-28 05:12:19,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:19,522 INFO L225 Difference]: With dead ends: 952 [2024-11-28 05:12:19,522 INFO L226 Difference]: Without dead ends: 718 [2024-11-28 05:12:19,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:12:19,523 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 122 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:19,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 407 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:12:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-28 05:12:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 633. [2024-11-28 05:12:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 588 states have (on average 1.2959183673469388) internal successors, (762), 588 states have internal predecessors, (762), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 840 transitions. [2024-11-28 05:12:19,575 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 840 transitions. Word has length 101 [2024-11-28 05:12:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 840 transitions. [2024-11-28 05:12:19,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 840 transitions. [2024-11-28 05:12:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 05:12:19,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:19,578 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:19,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 05:12:19,578 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:19,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2047526201, now seen corresponding path program 1 times [2024-11-28 05:12:19,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267898446] [2024-11-28 05:12:19,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267898446] [2024-11-28 05:12:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267898446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:12:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435182733] [2024-11-28 05:12:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:20,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:20,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:20,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:20,006 INFO L87 Difference]: Start difference. First operand 633 states and 840 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:20,343 INFO L93 Difference]: Finished difference Result 891 states and 1206 transitions. [2024-11-28 05:12:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:12:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 103 [2024-11-28 05:12:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:20,346 INFO L225 Difference]: With dead ends: 891 [2024-11-28 05:12:20,346 INFO L226 Difference]: Without dead ends: 623 [2024-11-28 05:12:20,347 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 [2024-11-28 05:12:20,347 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 91 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:20,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 256 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:12:20,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-28 05:12:20,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 593. [2024-11-28 05:12:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 548 states have (on average 1.302919708029197) internal successors, (714), 548 states have internal predecessors, (714), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 792 transitions. [2024-11-28 05:12:20,404 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 792 transitions. Word has length 103 [2024-11-28 05:12:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:20,404 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 792 transitions. [2024-11-28 05:12:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 792 transitions. [2024-11-28 05:12:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 05:12:20,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:20,405 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:20,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 05:12:20,405 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2116287914, now seen corresponding path program 1 times [2024-11-28 05:12:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679793059] [2024-11-28 05:12:20,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:20,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:20,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:20,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679793059] [2024-11-28 05:12:20,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679793059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:20,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:20,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:12:20,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365897033] [2024-11-28 05:12:20,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:20,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:12:20,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:20,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:12:20,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:12:20,468 INFO L87 Difference]: Start difference. First operand 593 states and 792 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:20,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:20,576 INFO L93 Difference]: Finished difference Result 925 states and 1271 transitions. [2024-11-28 05:12:20,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:12:20,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 103 [2024-11-28 05:12:20,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:20,579 INFO L225 Difference]: With dead ends: 925 [2024-11-28 05:12:20,579 INFO L226 Difference]: Without dead ends: 613 [2024-11-28 05:12:20,580 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 [2024-11-28 05:12:20,580 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 40 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 172 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 [2024-11-28 05:12:20,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 172 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:12:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-28 05:12:20,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 521. [2024-11-28 05:12:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 476 states have (on average 1.3298319327731092) internal successors, (633), 476 states have internal predecessors, (633), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 711 transitions. [2024-11-28 05:12:20,616 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 711 transitions. Word has length 103 [2024-11-28 05:12:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:20,616 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 711 transitions. [2024-11-28 05:12:20,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 711 transitions. [2024-11-28 05:12:20,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 05:12:20,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:20,617 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:20,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 05:12:20,617 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:20,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:20,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1963794801, now seen corresponding path program 1 times [2024-11-28 05:12:20,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:20,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663975122] [2024-11-28 05:12:20,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:20,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:20,872 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:20,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:20,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663975122] [2024-11-28 05:12:20,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663975122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:20,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:20,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:12:20,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349130306] [2024-11-28 05:12:20,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:20,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:12:20,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:20,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:12:20,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:12:20,874 INFO L87 Difference]: Start difference. First operand 521 states and 711 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:21,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:21,312 INFO L93 Difference]: Finished difference Result 936 states and 1275 transitions. [2024-11-28 05:12:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:12:21,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2024-11-28 05:12:21,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:21,315 INFO L225 Difference]: With dead ends: 936 [2024-11-28 05:12:21,315 INFO L226 Difference]: Without dead ends: 636 [2024-11-28 05:12:21,316 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 [2024-11-28 05:12:21,317 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 106 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:21,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 434 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:12:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-28 05:12:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 558. [2024-11-28 05:12:21,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 513 states have (on average 1.3216374269005848) internal successors, (678), 513 states have internal predecessors, (678), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 756 transitions. [2024-11-28 05:12:21,355 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 756 transitions. Word has length 104 [2024-11-28 05:12:21,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:21,356 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 756 transitions. [2024-11-28 05:12:21,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 756 transitions. [2024-11-28 05:12:21,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 05:12:21,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:21,357 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:21,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 05:12:21,358 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:21,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2097909403, now seen corresponding path program 1 times [2024-11-28 05:12:21,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:21,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625537271] [2024-11-28 05:12:21,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:21,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:21,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:21,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625537271] [2024-11-28 05:12:21,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625537271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:21,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:21,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 05:12:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211242120] [2024-11-28 05:12:21,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:21,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:12:21,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:21,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:12:21,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:12:21,597 INFO L87 Difference]: Start difference. First operand 558 states and 756 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:22,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:22,072 INFO L93 Difference]: Finished difference Result 946 states and 1284 transitions. [2024-11-28 05:12:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:12:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 104 [2024-11-28 05:12:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:22,076 INFO L225 Difference]: With dead ends: 946 [2024-11-28 05:12:22,076 INFO L226 Difference]: Without dead ends: 638 [2024-11-28 05:12:22,077 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 [2024-11-28 05:12:22,078 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 116 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:22,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 441 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:12:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-28 05:12:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 545. [2024-11-28 05:12:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 500 states have (on average 1.318) internal successors, (659), 500 states have internal predecessors, (659), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 737 transitions. [2024-11-28 05:12:22,131 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 737 transitions. Word has length 104 [2024-11-28 05:12:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:22,132 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 737 transitions. [2024-11-28 05:12:22,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 737 transitions. [2024-11-28 05:12:22,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 05:12:22,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:22,133 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:22,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-28 05:12:22,133 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:22,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1631192797, now seen corresponding path program 1 times [2024-11-28 05:12:22,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:22,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004281523] [2024-11-28 05:12:22,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:22,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004281523] [2024-11-28 05:12:22,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004281523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:22,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:22,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:12:22,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589252159] [2024-11-28 05:12:22,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:22,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:22,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:22,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:22,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:22,377 INFO L87 Difference]: Start difference. First operand 545 states and 737 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:22,707 INFO L93 Difference]: Finished difference Result 879 states and 1204 transitions. [2024-11-28 05:12:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:12:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 107 [2024-11-28 05:12:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:22,711 INFO L225 Difference]: With dead ends: 879 [2024-11-28 05:12:22,711 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 05:12:22,711 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 [2024-11-28 05:12:22,712 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 82 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:22,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 276 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:12:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 05:12:22,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 502. [2024-11-28 05:12:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 457 states have (on average 1.3260393873085339) internal successors, (606), 457 states have internal predecessors, (606), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 684 transitions. [2024-11-28 05:12:22,764 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 684 transitions. Word has length 107 [2024-11-28 05:12:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:22,765 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 684 transitions. [2024-11-28 05:12:22,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 684 transitions. [2024-11-28 05:12:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 05:12:22,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:22,766 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:22,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-28 05:12:22,766 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:22,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:22,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1031202948, now seen corresponding path program 1 times [2024-11-28 05:12:22,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:22,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570297473] [2024-11-28 05:12:22,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:22,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:12:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:24,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570297473] [2024-11-28 05:12:24,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570297473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:24,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:24,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:12:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312752695] [2024-11-28 05:12:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:24,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:12:24,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:24,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:12:24,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:12:24,766 INFO L87 Difference]: Start difference. First operand 502 states and 684 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:25,958 INFO L93 Difference]: Finished difference Result 935 states and 1265 transitions. [2024-11-28 05:12:25,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:12:25,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 107 [2024-11-28 05:12:25,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:12:25,961 INFO L225 Difference]: With dead ends: 935 [2024-11-28 05:12:25,961 INFO L226 Difference]: Without dead ends: 635 [2024-11-28 05:12:25,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:12:25,962 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 365 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:12:25,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 373 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:12:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2024-11-28 05:12:26,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 541. [2024-11-28 05:12:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 496 states have (on average 1.3205645161290323) internal successors, (655), 496 states have internal predecessors, (655), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:12:26,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 733 transitions. [2024-11-28 05:12:26,018 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 733 transitions. Word has length 107 [2024-11-28 05:12:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:12:26,018 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 733 transitions. [2024-11-28 05:12:26,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:12:26,018 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 733 transitions. [2024-11-28 05:12:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 05:12:26,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:12:26,019 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:26,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-28 05:12:26,019 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:12:26,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash -2052271302, now seen corresponding path program 1 times [2024-11-28 05:12:26,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:26,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872799914] [2024-11-28 05:12:26,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:13:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:13:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872799914] [2024-11-28 05:13:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872799914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:13:13,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:13:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:13:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867941460] [2024-11-28 05:13:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:13:13,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:13:13,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:13:13,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:13:13,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:13:13,313 INFO L87 Difference]: Start difference. First operand 541 states and 733 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:13:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:17,379 INFO L93 Difference]: Finished difference Result 671 states and 872 transitions. [2024-11-28 05:13:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 05:13:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-11-28 05:13:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:13:17,383 INFO L225 Difference]: With dead ends: 671 [2024-11-28 05:13:17,383 INFO L226 Difference]: Without dead ends: 669 [2024-11-28 05:13:17,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 05:13:17,384 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 309 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:13:17,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 654 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:13:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-28 05:13:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 556. [2024-11-28 05:13:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 511 states have (on average 1.3170254403131116) internal successors, (673), 511 states have internal predecessors, (673), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:13:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 751 transitions. [2024-11-28 05:13:17,441 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 751 transitions. Word has length 107 [2024-11-28 05:13:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:13:17,442 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 751 transitions. [2024-11-28 05:13:17,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:13:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 751 transitions. [2024-11-28 05:13:17,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 05:13:17,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:13:17,443 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:17,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-28 05:13:17,444 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:13:17,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1990231688, now seen corresponding path program 1 times [2024-11-28 05:13:17,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:13:17,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284498956] [2024-11-28 05:13:17,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:17,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:14:11,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:11,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284498956] [2024-11-28 05:14:11,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284498956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:11,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:11,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:14:11,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750055601] [2024-11-28 05:14:11,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:11,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:14:11,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:11,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:14:11,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:14:11,409 INFO L87 Difference]: Start difference. First operand 556 states and 751 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:14:20,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:20,399 INFO L93 Difference]: Finished difference Result 715 states and 921 transitions. [2024-11-28 05:14:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 05:14:20,400 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 107 [2024-11-28 05:14:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:20,403 INFO L225 Difference]: With dead ends: 715 [2024-11-28 05:14:20,403 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 05:14:20,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=258, Invalid=1382, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 05:14:20,405 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 290 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:20,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 630 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 05:14:20,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 05:14:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 571. [2024-11-28 05:14:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 526 states have (on average 1.3136882129277567) internal successors, (691), 526 states have internal predecessors, (691), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:14:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 769 transitions. [2024-11-28 05:14:20,444 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 769 transitions. Word has length 107 [2024-11-28 05:14:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:20,444 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 769 transitions. [2024-11-28 05:14:20,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 20 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:14:20,445 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 769 transitions. [2024-11-28 05:14:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 05:14:20,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:20,446 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:20,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 05:14:20,446 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:20,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 2087452862, now seen corresponding path program 1 times [2024-11-28 05:14:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:20,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977101821] [2024-11-28 05:14:20,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:20,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:14:21,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:21,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977101821] [2024-11-28 05:14:21,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977101821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:21,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:21,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:14:21,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247966003] [2024-11-28 05:14:21,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:21,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:14:21,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:21,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:14:21,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:14:21,033 INFO L87 Difference]: Start difference. First operand 571 states and 769 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:14:22,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:22,716 INFO L93 Difference]: Finished difference Result 973 states and 1308 transitions. [2024-11-28 05:14:22,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:14:22,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 107 [2024-11-28 05:14:22,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:22,719 INFO L225 Difference]: With dead ends: 973 [2024-11-28 05:14:22,720 INFO L226 Difference]: Without dead ends: 673 [2024-11-28 05:14:22,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:14:22,721 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 143 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:22,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 712 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 05:14:22,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-28 05:14:22,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 583. [2024-11-28 05:14:22,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 538 states have (on average 1.3066914498141264) internal successors, (703), 538 states have internal predecessors, (703), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:14:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 781 transitions. [2024-11-28 05:14:22,770 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 781 transitions. Word has length 107 [2024-11-28 05:14:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:22,771 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 781 transitions. [2024-11-28 05:14:22,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:14:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 781 transitions. [2024-11-28 05:14:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 05:14:22,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:22,772 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:22,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 05:14:22,772 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:22,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:22,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1754285991, now seen corresponding path program 1 times [2024-11-28 05:14:22,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030886497] [2024-11-28 05:14:22,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:15:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:15:18,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:15:18,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030886497] [2024-11-28 05:15:18,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030886497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:15:18,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:15:18,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:15:18,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368367197] [2024-11-28 05:15:18,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:15:18,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:15:18,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:15:18,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:15:18,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:15:18,895 INFO L87 Difference]: Start difference. First operand 583 states and 781 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:15:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:15:24,038 INFO L93 Difference]: Finished difference Result 677 states and 880 transitions. [2024-11-28 05:15:24,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 05:15:24,038 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-28 05:15:24,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:15:24,040 INFO L225 Difference]: With dead ends: 677 [2024-11-28 05:15:24,041 INFO L226 Difference]: Without dead ends: 675 [2024-11-28 05:15:24,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 05:15:24,041 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 469 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:15:24,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 742 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 05:15:24,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2024-11-28 05:15:24,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 583. [2024-11-28 05:15:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 538 states have (on average 1.3066914498141264) internal successors, (703), 538 states have internal predecessors, (703), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:15:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 781 transitions. [2024-11-28 05:15:24,078 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 781 transitions. Word has length 108 [2024-11-28 05:15:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:15:24,078 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 781 transitions. [2024-11-28 05:15:24,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:15:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 781 transitions. [2024-11-28 05:15:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 05:15:24,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:15:24,079 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:15:24,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-28 05:15:24,079 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:15:24,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:15:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 168942043, now seen corresponding path program 1 times [2024-11-28 05:15:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:15:24,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77933058] [2024-11-28 05:15:24,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:15:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:15:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:16:16,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:16,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77933058] [2024-11-28 05:16:16,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77933058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:16,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:16,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-28 05:16:16,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253439921] [2024-11-28 05:16:16,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:16,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:16:16,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:16,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:16:16,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:16:16,661 INFO L87 Difference]: Start difference. First operand 583 states and 781 transitions. Second operand has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:16:24,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:24,535 INFO L93 Difference]: Finished difference Result 877 states and 1098 transitions. [2024-11-28 05:16:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 05:16:24,535 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-28 05:16:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:24,539 INFO L225 Difference]: With dead ends: 877 [2024-11-28 05:16:24,539 INFO L226 Difference]: Without dead ends: 875 [2024-11-28 05:16:24,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=427, Invalid=2023, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 05:16:24,541 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 545 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:24,541 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 789 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 05:16:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2024-11-28 05:16:24,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 583. [2024-11-28 05:16:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 538 states have (on average 1.3066914498141264) internal successors, (703), 538 states have internal predecessors, (703), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:16:24,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 781 transitions. [2024-11-28 05:16:24,598 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 781 transitions. Word has length 108 [2024-11-28 05:16:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:24,598 INFO L471 AbstractCegarLoop]: Abstraction has 583 states and 781 transitions. [2024-11-28 05:16:24,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.3) internal successors, (46), 20 states have internal predecessors, (46), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:16:24,598 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 781 transitions. [2024-11-28 05:16:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 05:16:24,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:24,599 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:24,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-28 05:16:24,599 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:24,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:24,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1362027155, now seen corresponding path program 1 times [2024-11-28 05:16:24,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:24,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062105075] [2024-11-28 05:16:24,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:24,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:16:27,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:27,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062105075] [2024-11-28 05:16:27,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062105075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:16:27,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:16:27,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 05:16:27,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532902385] [2024-11-28 05:16:27,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:16:27,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:16:27,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:27,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:16:27,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 05:16:27,344 INFO L87 Difference]: Start difference. First operand 583 states and 781 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:16:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:28,832 INFO L93 Difference]: Finished difference Result 993 states and 1328 transitions. [2024-11-28 05:16:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:16:28,832 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-28 05:16:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:28,835 INFO L225 Difference]: With dead ends: 993 [2024-11-28 05:16:28,835 INFO L226 Difference]: Without dead ends: 641 [2024-11-28 05:16:28,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:16:28,837 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 165 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:28,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 05:16:28,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-28 05:16:28,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 571. [2024-11-28 05:16:28,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 526 states have (on average 1.3022813688212929) internal successors, (685), 526 states have internal predecessors, (685), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:16:28,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 763 transitions. [2024-11-28 05:16:28,879 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 763 transitions. Word has length 111 [2024-11-28 05:16:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:28,880 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 763 transitions. [2024-11-28 05:16:28,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:16:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 763 transitions. [2024-11-28 05:16:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 05:16:28,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:28,881 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:28,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-28 05:16:28,881 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:28,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:28,882 INFO L85 PathProgramCache]: Analyzing trace with hash 340958801, now seen corresponding path program 1 times [2024-11-28 05:16:28,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:28,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837761088] [2024-11-28 05:16:28,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:28,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:17:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:17:26,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:17:26,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837761088] [2024-11-28 05:17:26,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837761088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:17:26,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:17:26,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 05:17:26,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281628969] [2024-11-28 05:17:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:17:26,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:17:26,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:26,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:17:26,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:17:26,140 INFO L87 Difference]: Start difference. First operand 571 states and 763 transitions. Second operand has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:17:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:17:31,202 INFO L93 Difference]: Finished difference Result 659 states and 854 transitions. [2024-11-28 05:17:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:17:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-28 05:17:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:17:31,206 INFO L225 Difference]: With dead ends: 659 [2024-11-28 05:17:31,206 INFO L226 Difference]: Without dead ends: 657 [2024-11-28 05:17:31,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 05:17:31,208 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 249 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:17:31,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 787 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 05:17:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-28 05:17:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 562. [2024-11-28 05:17:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 517 states have (on average 1.3036750483558994) internal successors, (674), 517 states have internal predecessors, (674), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:17:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 752 transitions. [2024-11-28 05:17:31,250 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 752 transitions. Word has length 111 [2024-11-28 05:17:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:17:31,250 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 752 transitions. [2024-11-28 05:17:31,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 18 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:17:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 752 transitions. [2024-11-28 05:17:31,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 05:17:31,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:17:31,251 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:17:31,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 05:17:31,251 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:17:31,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:17:31,252 INFO L85 PathProgramCache]: Analyzing trace with hash 402998415, now seen corresponding path program 1 times [2024-11-28 05:17:31,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:17:31,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645460299] [2024-11-28 05:17:31,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:17:31,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:17:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:18:11,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:11,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645460299] [2024-11-28 05:18:11,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645460299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:11,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:11,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 05:18:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625452127] [2024-11-28 05:18:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:11,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 05:18:11,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:11,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 05:18:11,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:18:11,331 INFO L87 Difference]: Start difference. First operand 562 states and 752 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:18:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:13,911 INFO L93 Difference]: Finished difference Result 659 states and 854 transitions. [2024-11-28 05:18:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:18:13,911 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-28 05:18:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:13,914 INFO L225 Difference]: With dead ends: 659 [2024-11-28 05:18:13,914 INFO L226 Difference]: Without dead ends: 657 [2024-11-28 05:18:13,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=197, Invalid=733, Unknown=0, NotChecked=0, Total=930 [2024-11-28 05:18:13,915 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 185 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:13,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 903 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 05:18:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-11-28 05:18:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 553. [2024-11-28 05:18:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 508 states have (on average 1.3051181102362204) internal successors, (663), 508 states have internal predecessors, (663), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:18:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 741 transitions. [2024-11-28 05:18:13,970 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 741 transitions. Word has length 111 [2024-11-28 05:18:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:13,970 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 741 transitions. [2024-11-28 05:18:13,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 05:18:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 741 transitions. [2024-11-28 05:18:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 05:18:13,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:13,971 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:13,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 05:18:13,971 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:18:13,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:13,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2030780461, now seen corresponding path program 1 times [2024-11-28 05:18:13,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:13,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722183132] [2024-11-28 05:18:13,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:13,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 05:18:14,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:14,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722183132] [2024-11-28 05:18:14,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722183132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:18:14,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:18:14,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:18:14,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696295223] [2024-11-28 05:18:14,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:14,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:18:14,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:14,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:18:14,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:18:14,291 INFO L87 Difference]: Start difference. First operand 553 states and 741 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:18:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:15,001 INFO L93 Difference]: Finished difference Result 893 states and 1213 transitions. [2024-11-28 05:18:15,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:18:15,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 111 [2024-11-28 05:18:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:15,003 INFO L225 Difference]: With dead ends: 893 [2024-11-28 05:18:15,003 INFO L226 Difference]: Without dead ends: 552 [2024-11-28 05:18:15,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:18:15,004 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 114 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:15,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 506 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 05:18:15,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-28 05:18:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 512. [2024-11-28 05:18:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 467 states have (on average 1.3126338329764453) internal successors, (613), 467 states have internal predecessors, (613), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:18:15,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 691 transitions. [2024-11-28 05:18:15,043 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 691 transitions. Word has length 111 [2024-11-28 05:18:15,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:15,043 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 691 transitions. [2024-11-28 05:18:15,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:18:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 691 transitions. [2024-11-28 05:18:15,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 05:18:15,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:15,045 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:18:15,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-28 05:18:15,045 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:18:15,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:15,047 INFO L85 PathProgramCache]: Analyzing trace with hash -71225676, now seen corresponding path program 1 times [2024-11-28 05:18:15,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:15,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550475170] [2024-11-28 05:18:15,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 10 proven. 29 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 05:18:16,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550475170] [2024-11-28 05:18:16,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550475170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:18:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430485353] [2024-11-28 05:18:16,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:16,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:16,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:18:16,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:18:16,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:18:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:16,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-28 05:18:16,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:18:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 3 proven. 711 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-11-28 05:18:18,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:18:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-28 05:18:23,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430485353] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:18:23,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:18:23,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9, 13] total 28 [2024-11-28 05:18:23,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740017879] [2024-11-28 05:18:23,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:18:23,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:18:23,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:18:23,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:18:23,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:18:23,526 INFO L87 Difference]: Start difference. First operand 512 states and 691 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:18:31,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:18:31,991 INFO L93 Difference]: Finished difference Result 1061 states and 1430 transitions. [2024-11-28 05:18:31,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:18:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 192 [2024-11-28 05:18:31,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:18:31,993 INFO L225 Difference]: With dead ends: 1061 [2024-11-28 05:18:31,993 INFO L226 Difference]: Without dead ends: 913 [2024-11-28 05:18:31,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 05:18:31,994 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 269 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:18:31,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 875 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 05:18:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-11-28 05:18:32,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 524. [2024-11-28 05:18:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 479 states have (on average 1.3173277661795406) internal successors, (631), 479 states have internal predecessors, (631), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-28 05:18:32,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 709 transitions. [2024-11-28 05:18:32,045 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 709 transitions. Word has length 192 [2024-11-28 05:18:32,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:18:32,046 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 709 transitions. [2024-11-28 05:18:32,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:18:32,046 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 709 transitions. [2024-11-28 05:18:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-28 05:18:32,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:18:32,047 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 05:18:32,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:18:32,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:32,248 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:18:32,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:18:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1790528320, now seen corresponding path program 1 times [2024-11-28 05:18:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:18:32,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093263012] [2024-11-28 05:18:32,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:18:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-28 05:18:40,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:18:40,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093263012] [2024-11-28 05:18:40,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093263012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:18:40,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095210908] [2024-11-28 05:18:40,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:18:40,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:18:40,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:18:40,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:18:40,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3029b86-ad82-42ca-bf33-9bc964100d7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:18:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:18:40,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:18:40,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:18:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 3 proven. 712 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-11-28 05:18:44,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:19:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2024-11-28 05:19:15,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095210908] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 05:19:15,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:19:15,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [24, 12] total 42 [2024-11-28 05:19:15,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953346725] [2024-11-28 05:19:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:19:15,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 05:19:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:19:15,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 05:19:15,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1534, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 05:19:15,289 INFO L87 Difference]: Start difference. First operand 524 states and 709 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 05:19:20,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 05:19:36,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-28 05:19:40,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]