./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5c28cf38da1de1456241ac4a939c49e0441da83e6b9d5831b12e3d1a178d244e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:17:17,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:17:17,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:17:17,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:17:17,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:17:17,141 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:17:17,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:17:17,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:17:17,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:17:17,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:17:17,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:17:17,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:17:17,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:17:17,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:17:17,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:17:17,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:17:17,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:17:17,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:17:17,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:17:17,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:17:17,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:17:17,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:17:17,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:17:17,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:17:17,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:17:17,147 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:17:17,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:17:17,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:17:17,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:17:17,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:17:17,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:17:17,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:17:17,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:17:17,148 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_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c28cf38da1de1456241ac4a939c49e0441da83e6b9d5831b12e3d1a178d244e [2024-11-23 23:17:17,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:17:17,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:17:17,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:17:17,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:17:17,505 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:17:17,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i [2024-11-23 23:17:20,652 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/data/aeaf7d7dc/4291977e6cc24fe5b71f28a2c07db02e/FLAGe4c5003d0 [2024-11-23 23:17:21,030 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:17:21,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i [2024-11-23 23:17:21,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/data/aeaf7d7dc/4291977e6cc24fe5b71f28a2c07db02e/FLAGe4c5003d0 [2024-11-23 23:17:21,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/data/aeaf7d7dc/4291977e6cc24fe5b71f28a2c07db02e [2024-11-23 23:17:21,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:17:21,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:17:21,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:17:21,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:17:21,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:17:21,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:17:21" (1/1) ... [2024-11-23 23:17:21,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6debe49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:21, skipping insertion in model container [2024-11-23 23:17:21,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:17:21" (1/1) ... [2024-11-23 23:17:21,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:17:21,541 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_b92d9ccb-9155-44f9-9289-bcdd76fbe354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i[916,929] [2024-11-23 23:17:21,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:17:21,831 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:17:21,843 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_b92d9ccb-9155-44f9-9289-bcdd76fbe354/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-74.i[916,929] [2024-11-23 23:17:21,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:17:22,016 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:17:22,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22 WrapperNode [2024-11-23 23:17:22,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:17:22,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:17:22,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:17:22,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:17:22,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,181 INFO L138 Inliner]: procedures = 26, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 862 [2024-11-23 23:17:22,181 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:17:22,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:17:22,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:17:22,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:17:22,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,275 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:17:22,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,312 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,367 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:17:22,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:17:22,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:17:22,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:17:22,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (1/1) ... [2024-11-23 23:17:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:17:22,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:22,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:17:22,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:17:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:17:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:17:22,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:17:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:17:22,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:17:22,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:17:22,728 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:17:22,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:17:24,796 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-23 23:17:24,796 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:17:24,826 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:17:24,830 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:17:24,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:17:24 BoogieIcfgContainer [2024-11-23 23:17:24,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:17:24,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:17:24,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:17:24,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:17:24,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:17:21" (1/3) ... [2024-11-23 23:17:24,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b43d5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:17:24, skipping insertion in model container [2024-11-23 23:17:24,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:17:22" (2/3) ... [2024-11-23 23:17:24,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b43d5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:17:24, skipping insertion in model container [2024-11-23 23:17:24,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:17:24" (3/3) ... [2024-11-23 23:17:24,846 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-74.i [2024-11-23 23:17:24,862 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:17:24,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-74.i that has 2 procedures, 360 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:17:24,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:17:24,984 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;@2582f52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:17:24,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:17:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 360 states, 243 states have (on average 1.5843621399176955) internal successors, (385), 244 states have internal predecessors, (385), 114 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-23 23:17:25,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-23 23:17:25,053 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:25,054 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:25,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:25,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:25,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2011787140, now seen corresponding path program 1 times [2024-11-23 23:17:25,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:25,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228255893] [2024-11-23 23:17:25,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:25,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 25538 trivial. 0 not checked. [2024-11-23 23:17:26,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:26,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228255893] [2024-11-23 23:17:26,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228255893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:17:26,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999983308] [2024-11-23 23:17:26,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:17:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:17:26,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:17:26,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:17:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:26,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:17:26,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:17:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 226 proven. 0 refuted. 0 times theorem prover too weak. 25538 trivial. 0 not checked. [2024-11-23 23:17:26,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:17:26,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999983308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:26,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:17:26,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:17:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906844513] [2024-11-23 23:17:26,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:26,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:17:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:27,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:17:27,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:17:27,019 INFO L87 Difference]: Start difference. First operand has 360 states, 243 states have (on average 1.5843621399176955) internal successors, (385), 244 states have internal predecessors, (385), 114 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) Second operand has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 2 states have call successors, (114) [2024-11-23 23:17:27,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:27,127 INFO L93 Difference]: Finished difference Result 712 states and 1332 transitions. [2024-11-23 23:17:27,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:17:27,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 2 states have call successors, (114) Word has length 728 [2024-11-23 23:17:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:27,140 INFO L225 Difference]: With dead ends: 712 [2024-11-23 23:17:27,141 INFO L226 Difference]: Without dead ends: 355 [2024-11-23 23:17:27,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 729 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:17:27,150 INFO L435 NwaCegarLoop]: 601 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, 601 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:27,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-23 23:17:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2024-11-23 23:17:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 239 states have (on average 1.5606694560669456) internal successors, (373), 239 states have internal predecessors, (373), 114 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-23 23:17:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 601 transitions. [2024-11-23 23:17:27,257 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 601 transitions. Word has length 728 [2024-11-23 23:17:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:27,260 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 601 transitions. [2024-11-23 23:17:27,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 81.5) internal successors, (163), 2 states have internal predecessors, (163), 2 states have call successors, (114), 2 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 2 states have call successors, (114) [2024-11-23 23:17:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 601 transitions. [2024-11-23 23:17:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-23 23:17:27,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:27,286 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:27,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:17:27,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b92d9ccb-9155-44f9-9289-bcdd76fbe354/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:17:27,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:27,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:27,488 INFO L85 PathProgramCache]: Analyzing trace with hash 611016022, now seen corresponding path program 1 times [2024-11-23 23:17:27,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:27,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850032146] [2024-11-23 23:17:27,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:27,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:28,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:28,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850032146] [2024-11-23 23:17:28,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850032146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:28,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:28,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:28,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212128102] [2024-11-23 23:17:28,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:28,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:28,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:28,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:28,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:28,791 INFO L87 Difference]: Start difference. First operand 355 states and 601 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:28,979 INFO L93 Difference]: Finished difference Result 920 states and 1567 transitions. [2024-11-23 23:17:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:28,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 728 [2024-11-23 23:17:28,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:28,988 INFO L225 Difference]: With dead ends: 920 [2024-11-23 23:17:28,988 INFO L226 Difference]: Without dead ends: 568 [2024-11-23 23:17:28,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:28,990 INFO L435 NwaCegarLoop]: 708 mSDtfsCounter, 366 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:28,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1290 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:17:28,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-23 23:17:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 565. [2024-11-23 23:17:29,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 420 states have (on average 1.619047619047619) internal successors, (680), 421 states have internal predecessors, (680), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 141 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-23 23:17:29,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 964 transitions. [2024-11-23 23:17:29,088 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 964 transitions. Word has length 728 [2024-11-23 23:17:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:29,093 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 964 transitions. [2024-11-23 23:17:29,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 964 transitions. [2024-11-23 23:17:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-23 23:17:29,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:29,116 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:29,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:17:29,116 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:29,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:29,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1347558764, now seen corresponding path program 1 times [2024-11-23 23:17:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258672436] [2024-11-23 23:17:29,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:29,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:29,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258672436] [2024-11-23 23:17:29,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258672436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:29,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:29,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409144143] [2024-11-23 23:17:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:29,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:29,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:29,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:29,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:29,737 INFO L87 Difference]: Start difference. First operand 565 states and 964 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:29,874 INFO L93 Difference]: Finished difference Result 1134 states and 1930 transitions. [2024-11-23 23:17:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:29,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 728 [2024-11-23 23:17:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:29,884 INFO L225 Difference]: With dead ends: 1134 [2024-11-23 23:17:29,884 INFO L226 Difference]: Without dead ends: 572 [2024-11-23 23:17:29,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:29,887 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 357 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:29,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1181 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:29,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-23 23:17:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 477. [2024-11-23 23:17:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 360 states have (on average 1.6416666666666666) internal successors, (591), 360 states have internal predecessors, (591), 114 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-23 23:17:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 819 transitions. [2024-11-23 23:17:29,945 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 819 transitions. Word has length 728 [2024-11-23 23:17:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:29,950 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 819 transitions. [2024-11-23 23:17:29,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 819 transitions. [2024-11-23 23:17:29,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-23 23:17:29,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:29,962 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:29,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:17:29,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:29,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1045733548, now seen corresponding path program 1 times [2024-11-23 23:17:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:29,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937642236] [2024-11-23 23:17:29,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:30,500 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:30,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:30,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937642236] [2024-11-23 23:17:30,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937642236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:30,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:30,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:30,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522881193] [2024-11-23 23:17:30,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:30,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:30,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:30,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:30,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:30,503 INFO L87 Difference]: Start difference. First operand 477 states and 819 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:30,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:30,599 INFO L93 Difference]: Finished difference Result 1405 states and 2415 transitions. [2024-11-23 23:17:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:30,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 728 [2024-11-23 23:17:30,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:30,609 INFO L225 Difference]: With dead ends: 1405 [2024-11-23 23:17:30,609 INFO L226 Difference]: Without dead ends: 931 [2024-11-23 23:17:30,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:30,612 INFO L435 NwaCegarLoop]: 945 mSDtfsCounter, 575 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:30,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1528 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:30,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-23 23:17:30,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 663. [2024-11-23 23:17:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 546 states have (on average 1.7142857142857142) internal successors, (936), 546 states have internal predecessors, (936), 114 states have call successors, (114), 2 states have call predecessors, (114), 2 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-23 23:17:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1164 transitions. [2024-11-23 23:17:30,701 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1164 transitions. Word has length 728 [2024-11-23 23:17:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:30,704 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1164 transitions. [2024-11-23 23:17:30,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1164 transitions. [2024-11-23 23:17:30,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-23 23:17:30,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:30,713 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:30,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:17:30,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:30,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:30,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1385203712, now seen corresponding path program 1 times [2024-11-23 23:17:30,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:30,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918285768] [2024-11-23 23:17:30,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:30,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:31,317 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:31,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918285768] [2024-11-23 23:17:31,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918285768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:31,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:31,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:31,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858781893] [2024-11-23 23:17:31,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:31,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:31,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:31,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:31,322 INFO L87 Difference]: Start difference. First operand 663 states and 1164 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:31,442 INFO L93 Difference]: Finished difference Result 1979 states and 3478 transitions. [2024-11-23 23:17:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:31,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 729 [2024-11-23 23:17:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:31,458 INFO L225 Difference]: With dead ends: 1979 [2024-11-23 23:17:31,459 INFO L226 Difference]: Without dead ends: 1319 [2024-11-23 23:17:31,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:31,464 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 579 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:31,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1185 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-11-23 23:17:31,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1317. [2024-11-23 23:17:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 1084 states have (on average 1.7029520295202951) internal successors, (1846), 1084 states have internal predecessors, (1846), 228 states have call successors, (228), 4 states have call predecessors, (228), 4 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2024-11-23 23:17:31,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 2302 transitions. [2024-11-23 23:17:31,581 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 2302 transitions. Word has length 729 [2024-11-23 23:17:31,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:31,583 INFO L471 AbstractCegarLoop]: Abstraction has 1317 states and 2302 transitions. [2024-11-23 23:17:31,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 2302 transitions. [2024-11-23 23:17:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-23 23:17:31,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:31,592 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:31,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:17:31,593 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:31,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash 904123454, now seen corresponding path program 1 times [2024-11-23 23:17:31,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:31,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488516392] [2024-11-23 23:17:31,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:31,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:32,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488516392] [2024-11-23 23:17:32,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488516392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:32,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892825081] [2024-11-23 23:17:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:32,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:32,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:32,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:32,119 INFO L87 Difference]: Start difference. First operand 1317 states and 2302 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:32,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:32,280 INFO L93 Difference]: Finished difference Result 3623 states and 6358 transitions. [2024-11-23 23:17:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:32,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 729 [2024-11-23 23:17:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:32,298 INFO L225 Difference]: With dead ends: 3623 [2024-11-23 23:17:32,299 INFO L226 Difference]: Without dead ends: 2309 [2024-11-23 23:17:32,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:32,305 INFO L435 NwaCegarLoop]: 699 mSDtfsCounter, 312 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:32,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 1290 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:32,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2024-11-23 23:17:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2305. [2024-11-23 23:17:32,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 1994 states have (on average 1.7261785356068204) internal successors, (3442), 1996 states have internal predecessors, (3442), 302 states have call successors, (302), 8 states have call predecessors, (302), 8 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-23 23:17:32,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 4046 transitions. [2024-11-23 23:17:32,481 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 4046 transitions. Word has length 729 [2024-11-23 23:17:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:32,484 INFO L471 AbstractCegarLoop]: Abstraction has 2305 states and 4046 transitions. [2024-11-23 23:17:32,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:32,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 4046 transitions. [2024-11-23 23:17:32,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-23 23:17:32,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:32,494 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:32,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:17:32,495 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:32,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2004640448, now seen corresponding path program 1 times [2024-11-23 23:17:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218385851] [2024-11-23 23:17:32,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:32,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218385851] [2024-11-23 23:17:32,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218385851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:32,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:32,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:32,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644194438] [2024-11-23 23:17:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:32,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:32,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:32,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:32,924 INFO L87 Difference]: Start difference. First operand 2305 states and 4046 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:33,126 INFO L93 Difference]: Finished difference Result 6405 states and 11212 transitions. [2024-11-23 23:17:33,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:33,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 729 [2024-11-23 23:17:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:33,185 INFO L225 Difference]: With dead ends: 6405 [2024-11-23 23:17:33,185 INFO L226 Difference]: Without dead ends: 4103 [2024-11-23 23:17:33,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:33,190 INFO L435 NwaCegarLoop]: 1056 mSDtfsCounter, 526 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:33,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1650 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:33,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4103 states. [2024-11-23 23:17:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4103 to 2385. [2024-11-23 23:17:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2074 states have (on average 1.720347155255545) internal successors, (3568), 2076 states have internal predecessors, (3568), 302 states have call successors, (302), 8 states have call predecessors, (302), 8 states have return successors, (302), 300 states have call predecessors, (302), 302 states have call successors, (302) [2024-11-23 23:17:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 4172 transitions. [2024-11-23 23:17:33,417 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 4172 transitions. Word has length 729 [2024-11-23 23:17:33,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:33,418 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 4172 transitions. [2024-11-23 23:17:33,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 4172 transitions. [2024-11-23 23:17:33,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2024-11-23 23:17:33,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:33,428 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:33,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:17:33,428 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:33,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1780853758, now seen corresponding path program 1 times [2024-11-23 23:17:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:33,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110972075] [2024-11-23 23:17:33,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:33,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:34,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:34,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110972075] [2024-11-23 23:17:34,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110972075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:34,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:34,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:17:34,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518456395] [2024-11-23 23:17:34,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:34,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:17:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:34,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:17:34,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:17:34,246 INFO L87 Difference]: Start difference. First operand 2385 states and 4172 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:35,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:35,427 INFO L93 Difference]: Finished difference Result 5983 states and 10446 transitions. [2024-11-23 23:17:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:17:35,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 729 [2024-11-23 23:17:35,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:35,458 INFO L225 Difference]: With dead ends: 5983 [2024-11-23 23:17:35,458 INFO L226 Difference]: Without dead ends: 3601 [2024-11-23 23:17:35,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:17:35,466 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 745 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:35,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 913 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 23:17:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2024-11-23 23:17:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3597. [2024-11-23 23:17:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 3100 states have (on average 1.6987096774193549) internal successors, (5266), 3106 states have internal predecessors, (5266), 480 states have call successors, (480), 16 states have call predecessors, (480), 16 states have return successors, (480), 474 states have call predecessors, (480), 480 states have call successors, (480) [2024-11-23 23:17:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 6226 transitions. [2024-11-23 23:17:35,819 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 6226 transitions. Word has length 729 [2024-11-23 23:17:35,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:35,821 INFO L471 AbstractCegarLoop]: Abstraction has 3597 states and 6226 transitions. [2024-11-23 23:17:35,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:35,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 6226 transitions. [2024-11-23 23:17:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:17:35,839 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:35,840 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:35,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:17:35,840 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:35,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash 6111776, now seen corresponding path program 1 times [2024-11-23 23:17:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:35,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928157482] [2024-11-23 23:17:35,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:36,317 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:36,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:36,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928157482] [2024-11-23 23:17:36,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928157482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:36,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:36,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:36,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983350040] [2024-11-23 23:17:36,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:36,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:36,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:36,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:36,321 INFO L87 Difference]: Start difference. First operand 3597 states and 6226 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:36,729 INFO L93 Difference]: Finished difference Result 8459 states and 14432 transitions. [2024-11-23 23:17:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:36,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:17:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:36,771 INFO L225 Difference]: With dead ends: 8459 [2024-11-23 23:17:36,771 INFO L226 Difference]: Without dead ends: 4865 [2024-11-23 23:17:36,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:36,782 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 341 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:36,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1462 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:36,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2024-11-23 23:17:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4861. [2024-11-23 23:17:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4861 states, 3884 states have (on average 1.6246138002059731) internal successors, (6310), 3898 states have internal predecessors, (6310), 944 states have call successors, (944), 32 states have call predecessors, (944), 32 states have return successors, (944), 930 states have call predecessors, (944), 944 states have call successors, (944) [2024-11-23 23:17:37,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 8198 transitions. [2024-11-23 23:17:37,390 INFO L78 Accepts]: Start accepts. Automaton has 4861 states and 8198 transitions. Word has length 730 [2024-11-23 23:17:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:37,392 INFO L471 AbstractCegarLoop]: Abstraction has 4861 states and 8198 transitions. [2024-11-23 23:17:37,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4861 states and 8198 transitions. [2024-11-23 23:17:37,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:17:37,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:37,415 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:37,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:17:37,416 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:37,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash 224966494, now seen corresponding path program 1 times [2024-11-23 23:17:37,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:37,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129390455] [2024-11-23 23:17:37,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:37,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:38,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:38,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129390455] [2024-11-23 23:17:38,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129390455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:38,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:38,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:17:38,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956791753] [2024-11-23 23:17:38,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:38,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:17:38,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:38,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:17:38,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:17:38,541 INFO L87 Difference]: Start difference. First operand 4861 states and 8198 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:41,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:41,492 INFO L93 Difference]: Finished difference Result 19769 states and 32796 transitions. [2024-11-23 23:17:41,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:17:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:17:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:41,603 INFO L225 Difference]: With dead ends: 19769 [2024-11-23 23:17:41,603 INFO L226 Difference]: Without dead ends: 14911 [2024-11-23 23:17:41,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:17:41,620 INFO L435 NwaCegarLoop]: 660 mSDtfsCounter, 1089 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:41,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1865 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 23:17:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14911 states. [2024-11-23 23:17:42,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14911 to 9837. [2024-11-23 23:17:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9837 states, 8004 states have (on average 1.6259370314842578) internal successors, (13014), 8034 states have internal predecessors, (13014), 1768 states have call successors, (1768), 64 states have call predecessors, (1768), 64 states have return successors, (1768), 1738 states have call predecessors, (1768), 1768 states have call successors, (1768) [2024-11-23 23:17:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9837 states to 9837 states and 16550 transitions. [2024-11-23 23:17:42,614 INFO L78 Accepts]: Start accepts. Automaton has 9837 states and 16550 transitions. Word has length 730 [2024-11-23 23:17:42,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:42,615 INFO L471 AbstractCegarLoop]: Abstraction has 9837 states and 16550 transitions. [2024-11-23 23:17:42,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9837 states and 16550 transitions. [2024-11-23 23:17:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:17:42,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:42,634 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:42,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:17:42,635 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:42,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:42,636 INFO L85 PathProgramCache]: Analyzing trace with hash 365515104, now seen corresponding path program 1 times [2024-11-23 23:17:42,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:42,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726628740] [2024-11-23 23:17:42,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:42,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:43,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:43,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726628740] [2024-11-23 23:17:43,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726628740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:43,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:43,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:17:43,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616802188] [2024-11-23 23:17:43,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:43,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:17:43,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:43,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:17:43,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:43,738 INFO L87 Difference]: Start difference. First operand 9837 states and 16550 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:44,934 INFO L93 Difference]: Finished difference Result 27889 states and 47128 transitions. [2024-11-23 23:17:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:17:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:17:44,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:45,014 INFO L225 Difference]: With dead ends: 27889 [2024-11-23 23:17:45,015 INFO L226 Difference]: Without dead ends: 18055 [2024-11-23 23:17:45,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:17:45,047 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 341 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:45,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1187 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:17:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18055 states. [2024-11-23 23:17:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18055 to 18053. [2024-11-23 23:17:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18053 states, 14958 states have (on average 1.6447386014173018) internal successors, (24602), 15003 states have internal predecessors, (24602), 2981 states have call successors, (2981), 113 states have call predecessors, (2981), 113 states have return successors, (2981), 2936 states have call predecessors, (2981), 2981 states have call successors, (2981) [2024-11-23 23:17:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18053 states to 18053 states and 30564 transitions. [2024-11-23 23:17:46,906 INFO L78 Accepts]: Start accepts. Automaton has 18053 states and 30564 transitions. Word has length 730 [2024-11-23 23:17:46,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:46,908 INFO L471 AbstractCegarLoop]: Abstraction has 18053 states and 30564 transitions. [2024-11-23 23:17:46,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 18053 states and 30564 transitions. [2024-11-23 23:17:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:17:46,928 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:46,928 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:46,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:17:46,929 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:46,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash -452133346, now seen corresponding path program 1 times [2024-11-23 23:17:46,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:46,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91587596] [2024-11-23 23:17:46,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:46,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:47,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:47,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91587596] [2024-11-23 23:17:47,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91587596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:47,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:47,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:17:47,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385217029] [2024-11-23 23:17:47,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:47,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:17:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:47,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:17:47,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:17:47,727 INFO L87 Difference]: Start difference. First operand 18053 states and 30564 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:17:52,121 INFO L93 Difference]: Finished difference Result 71963 states and 121851 transitions. [2024-11-23 23:17:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:17:52,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:17:52,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:17:52,417 INFO L225 Difference]: With dead ends: 71963 [2024-11-23 23:17:52,417 INFO L226 Difference]: Without dead ends: 53977 [2024-11-23 23:17:52,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:17:52,496 INFO L435 NwaCegarLoop]: 1254 mSDtfsCounter, 1165 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 23:17:52,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 2287 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 23:17:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53977 states. [2024-11-23 23:17:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53977 to 36663. [2024-11-23 23:17:55,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36663 states, 30457 states have (on average 1.6301014545096366) internal successors, (49648), 30547 states have internal predecessors, (49648), 5977 states have call successors, (5977), 228 states have call predecessors, (5977), 228 states have return successors, (5977), 5887 states have call predecessors, (5977), 5977 states have call successors, (5977) [2024-11-23 23:17:56,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36663 states to 36663 states and 61602 transitions. [2024-11-23 23:17:56,141 INFO L78 Accepts]: Start accepts. Automaton has 36663 states and 61602 transitions. Word has length 730 [2024-11-23 23:17:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:17:56,143 INFO L471 AbstractCegarLoop]: Abstraction has 36663 states and 61602 transitions. [2024-11-23 23:17:56,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:17:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 36663 states and 61602 transitions. [2024-11-23 23:17:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:17:56,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:17:56,178 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:17:56,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:17:56,179 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:17:56,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:17:56,180 INFO L85 PathProgramCache]: Analyzing trace with hash -961606436, now seen corresponding path program 1 times [2024-11-23 23:17:56,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:17:56,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672900780] [2024-11-23 23:17:56,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:17:56,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:17:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:17:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:17:57,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:17:57,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672900780] [2024-11-23 23:17:57,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672900780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:17:57,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:17:57,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:17:57,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269658061] [2024-11-23 23:17:57,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:17:57,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:17:57,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:17:57,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:17:57,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:17:57,611 INFO L87 Difference]: Start difference. First operand 36663 states and 61602 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:18:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:18:05,526 INFO L93 Difference]: Finished difference Result 137349 states and 228218 transitions. [2024-11-23 23:18:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:18:05,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:18:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:18:06,028 INFO L225 Difference]: With dead ends: 137349 [2024-11-23 23:18:06,028 INFO L226 Difference]: Without dead ends: 94721 [2024-11-23 23:18:06,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:18:06,130 INFO L435 NwaCegarLoop]: 944 mSDtfsCounter, 794 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:18:06,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2175 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 23:18:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94721 states. [2024-11-23 23:18:10,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94721 to 63360. [2024-11-23 23:18:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63360 states, 57817 states have (on average 1.6928757977757407) internal successors, (97877), 57907 states have internal predecessors, (97877), 5298 states have call successors, (5298), 244 states have call predecessors, (5298), 244 states have return successors, (5298), 5208 states have call predecessors, (5298), 5298 states have call successors, (5298) [2024-11-23 23:18:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63360 states to 63360 states and 108473 transitions. [2024-11-23 23:18:11,338 INFO L78 Accepts]: Start accepts. Automaton has 63360 states and 108473 transitions. Word has length 730 [2024-11-23 23:18:11,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:18:11,339 INFO L471 AbstractCegarLoop]: Abstraction has 63360 states and 108473 transitions. [2024-11-23 23:18:11,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:18:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand 63360 states and 108473 transitions. [2024-11-23 23:18:11,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-11-23 23:18:11,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:18:11,405 INFO L218 NwaCegarLoop]: trace histogram [114, 114, 114, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:18:11,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:18:11,406 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:18:11,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:18:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1621482906, now seen corresponding path program 1 times [2024-11-23 23:18:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:18:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537012629] [2024-11-23 23:18:11,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:18:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:18:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:18:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 25764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2024-11-23 23:18:13,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:18:13,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537012629] [2024-11-23 23:18:13,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537012629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:18:13,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:18:13,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:18:13,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503721420] [2024-11-23 23:18:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:18:13,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:18:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:18:13,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:18:13,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:18:13,064 INFO L87 Difference]: Start difference. First operand 63360 states and 108473 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) [2024-11-23 23:18:18,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:18:18,022 INFO L93 Difference]: Finished difference Result 176346 states and 300885 transitions. [2024-11-23 23:18:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:18:18,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 1 states have call predecessors, (114), 1 states have call successors, (114) Word has length 730 [2024-11-23 23:18:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:18:18,398 INFO L225 Difference]: With dead ends: 176346 [2024-11-23 23:18:18,398 INFO L226 Difference]: Without dead ends: 113053 [2024-11-23 23:18:18,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:18:18,468 INFO L435 NwaCegarLoop]: 590 mSDtfsCounter, 474 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:18:18,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1145 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:18:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113053 states. [2024-11-23 23:18:23,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113053 to 112912. [2024-11-23 23:18:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112912 states, 102697 states have (on average 1.6728531505302005) internal successors, (171797), 102883 states have internal predecessors, (171797), 9746 states have call successors, (9746), 468 states have call predecessors, (9746), 468 states have return successors, (9746), 9560 states have call predecessors, (9746), 9746 states have call successors, (9746)